From 4c3530365a4b807fd6b8cf39a5bba1e87f613c15 Mon Sep 17 00:00:00 2001
From: mvdbeek <m.vandenbeek@gmail.com>
Date: Fri, 19 Apr 2019 15:28:32 +0200
Subject: [PATCH] Make paired check more defensive

This was erroring out if the collectionType wasn't set. This was causing
some weird dragging of the parameter (with the exception in the browser
console).
---
 client/galaxy/scripts/mvc/workflow/workflow-terminals.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/client/galaxy/scripts/mvc/workflow/workflow-terminals.js b/client/galaxy/scripts/mvc/workflow/workflow-terminals.js
index 550149d40ba..725e36c609a 100644
--- a/client/galaxy/scripts/mvc/workflow/workflow-terminals.js
+++ b/client/galaxy/scripts/mvc/workflow/workflow-terminals.js
@@ -426,7 +426,7 @@ var InputTerminal = BaseInputTerminal.extend({
                         "Cannot attach collections to data parameters with individual data inputs already attached."
                     );
                 }
-                if (otherCollectionType.collectionType.endsWith("paired")) {
+                if (otherCollectionType.collectionType && otherCollectionType.collectionType.endsWith("paired")) {
                     return new ConnectionAcceptable(
                         false,
                         "Cannot attach paired inputs to multiple data parameters, only lists may be treated this way."