Merge branch 'sidebar-clipboard-toggle' into 'master'

Prevent toggling sidebar when clipboard icon clicked.

Prevents sidebar being toggle when copy to clipboard icon clicked.

Fixes #19399 

![sidebar-toggle](/uploads/e4e8dfe9ff2546464269242b5f3e34b1/sidebar-toggle.gif)

See merge request !5326

CHANGELOG

@@ -142,6 +142,7 @@ v 8.10.0 (unreleased)
   - Fix issues importing projects from EE to CE
   - Fix creating group with space in group path
   - Improve cron_jobs loading error messages !5318 / !5360
+  - Prevent toggling sidebar when clipboard icon clicked
   - Create Todos for Issue author when assign or mention himself (Katarzyna Kobierska)
   - Limit the number of retries on error to 3 for exporting projects
   - Allow empty repositories on project import/export

app/assets/javascripts/right_sidebar.js.coffee

@@ -120,6 +120,9 @@ class @Sidebar
       i.show()
 
   sidebarCollapseClicked: (e) ->
+
+    return if $(e.currentTarget).hasClass('dont-change-state')
+
     sidebar = e.data
     e.preventDefault()
     $block = $(@).closest('.block')

app/views/shared/issuable/_sidebar.html.haml

@@ -156,7 +156,7 @@
 
       - project_ref = cross_project_reference(@project, issuable)
       .block.project-reference
-        .sidebar-collapsed-icon
+        .sidebar-collapsed-icon.dont-change-state
           = clipboard_button(clipboard_text: project_ref)
         .cross-project-reference.hide-collapsed
           %span