Merge branch 'member-expiration-date-on-update' into 'master'

Fix expiration date picker after update

@DouweM this object is now on `gl`, not on the window. It would only break when trying to use the date picker on a newly-inserted member element, but I figure it's probably worth sneaking into a patch.

See merge request !6184

app/views/groups/group_members/update.js.haml

 :plain
   $("##{dom_id(@group_member)}").replaceWith('#{escape_javascript(render('shared/members/member', member: @group_member))}');
-  new MemberExpirationDate();
+  new gl.MemberExpirationDate();

app/views/projects/project_members/update.js.haml

 :plain
   $("##{dom_id(@project_member)}").replaceWith('#{escape_javascript(render('shared/members/member', member: @project_member))}');
-  new MemberExpirationDate();
+  new gl.MemberExpirationDate();