diff --git a/lib/galaxy/tool_util/linters/inputs.py b/lib/galaxy/tool_util/linters/inputs.py
index 90e4d6fe504..7c8a47c69af 100644
--- a/lib/galaxy/tool_util/linters/inputs.py
+++ b/lib/galaxy/tool_util/linters/inputs.py
@@ -77,7 +77,6 @@ def lint_inputs(tool_xml, lint_ctx):
             options = param.findall("./options")
             filters = param.findall("./options/filter")
             select_options = param.findall('./option')
-            select_options_text = [option.text.strip() if option.text is not None else option.attrib.get("value", "").capitalize() for option in select_options]
 
             if dynamic_options is not None:
                 lint_ctx.warn(f"Select parameter [{param_name}] uses deprecated 'dynamic_options' attribute.")
@@ -137,9 +136,20 @@ def lint_inputs(tool_xml, lint_ctx):
                 lint_ctx.error(f"Select parameter [{param_name}] has option without value")
             if any(option.text is None for option in select_options):
                 lint_ctx.warn(f"Select parameter [{param_name}] has option without text")
-            if len(set(select_options_text)) != len(select_options_text):
+
+            select_options_texts = list()
+            select_options_values = list()
+            for option in select_options:
+                value = option.attrib.get("value", "")
+                if option.text is None:
+                    text = value.capitalize()
+                else:
+                    text = option.text
+                select_options_texts.append((text, option.attrib.get("selected", "false")))
+                select_options_values.append((value, option.attrib.get("selected", "false")))
+            if len(set(select_options_texts)) != len(select_options_texts):
                 lint_ctx.error(f"Select parameter [{param_name}] has multiple options with the same text content")
-            if len({option.attrib.get("value") for option in select_options}) != len(select_options):
+            if len(set(select_options_values)) != len(select_options_values):
                 lint_ctx.error(f"Select parameter [{param_name}] has multiple options with the same value")
 
             multiple = string_as_bool(param_attrib.get("multiple", "false"))
diff --git a/lib/galaxy/tool_util/parser/xml.py b/lib/galaxy/tool_util/parser/xml.py
index e78ab2e0838..170ddf92241 100644
--- a/lib/galaxy/tool_util/parser/xml.py
+++ b/lib/galaxy/tool_util/parser/xml.py
@@ -1124,12 +1124,31 @@ class XmlInputSource(InputSource):
         return options_elem
 
     def parse_static_options(self):
+        """
+        >>> from galaxy.util import parse_xml_string_to_etree
+        >>> xml = '<param><option value="a">A</option><option value="b">B</option></param>'
+        >>> xis = XmlInputSource(parse_xml_string_to_etree(xml).getroot())
+        >>> xis.parse_static_options()
+        [('A', 'a', False), ('B', 'b', False)]
+        >>> xml = '<param><option value="a"/><option value="b"/><option value="a" selected="true"/></param>'
+        >>> xis = XmlInputSource(parse_xml_string_to_etree(xml).getroot())
+        >>> xis.parse_static_options()
+        [('a', 'a', True), ('b', 'b', False)]
+        """
         static_options = list()
         elem = self.input_elem
         for option in elem.findall("option"):
             value = option.get("value")
+            text = option.text or value
             selected = string_as_bool(option.get("selected", False))
-            static_options.append((option.text or value, value, selected))
+            present = False
+            for i, o in enumerate(static_options):
+                if o[1] == value:
+                    present = True
+                    static_options[i] = (text, value, selected)
+                    break
+            if not present:
+                static_options.append((text, value, selected))
         return static_options
 
     def parse_optional(self, default=None):
diff --git a/lib/galaxy/tool_util/xsd/galaxy.xsd b/lib/galaxy/tool_util/xsd/galaxy.xsd
index 8ef122388f3..0ffb5a25046 100644
--- a/lib/galaxy/tool_util/xsd/galaxy.xsd
+++ b/lib/galaxy/tool_util/xsd/galaxy.xsd
@@ -3372,17 +3372,23 @@ value is ``select`` (i.e. ``<param type="select" ...>``).
 ```
 
 An option can also be annotated with ``selected="true"`` to specify a
-default option.
+default option (note that the first option is selected automatically
+if ``optional="false"``).
 
 ```xml
 <param name="col" type="select" label="From">
-    <option value="0" selected="true">Column 1 / Sequence name</option>
-    <option value="1">Column 2 / Source</option>
+    <option value="0">Column 1 / Sequence name</option>
+    <option value="1" selected="true">Column 2 / Source</option>
     <option value="2">Column 3 / Feature</option>
     <option value="6">Column 7 / Strand</option>
     <option value="7">Column 8 / Frame</option>
 </param>
 ```
+
+In general the values and the texts for the options need to be unique,
+but it is possible to specify an option two times if the 2nd has a different
+value for the ``selected`` attribute. This is handy if an option list is
+defined in a macro and different default value(s) are used.
 ]]>
 </xs:documentation>
     </xs:annotation>
diff --git a/test/unit/tool_util/test_tool_linters.py b/test/unit/tool_util/test_tool_linters.py
index c856715d434..7756b5993c2 100644
--- a/test/unit/tool_util/test_tool_linters.py
+++ b/test/unit/tool_util/test_tool_linters.py
@@ -107,6 +107,17 @@ SELECT_DUPLICATED_OPTIONS = """
 </tool>
 """
 
+SELECT_DUPLICATED_OPTIONS_WITH_DIFF_SELECTED = """
+<tool>
+    <inputs>
+        <param name="select" type="select" optional="true" multiple="true">
+            <option value="v">x</option>
+            <option value="v" selected="true">x</option>
+        </param>
+    </inputs>
+</tool>
+"""
+
 SELECT_DEPRECATIONS = """
 <tool name="BWA Mapper" id="bwa" version="1.0.1" display_interface="true" require_login="true" hidden="true">
     <description>The BWA Mapper</description>
@@ -331,6 +342,11 @@ TESTS = [
             and 'Select parameter [select] has multiple options with the same value' in x.error_messages
             and len(x.warn_messages) == 0 and len(x.error_messages) == 2
     ),
+    (
+        SELECT_DUPLICATED_OPTIONS_WITH_DIFF_SELECTED, inputs.lint_inputs,
+        lambda x:
+            len(x.warn_messages) == 0 and len(x.error_messages) == 0
+    ),
     (
         SELECT_DEPRECATIONS, inputs.lint_inputs,
         lambda x:
@@ -407,6 +423,7 @@ TEST_IDS = [
     'lint no when',
     'radio select incompatibilities',
     'select duplicated options',
+    'select duplicated options with different selected',
     'select deprecations',
     'select option definitions',
     'validator imcompatibilities',