Fix accidental alias deapplication

appengine/swarming/ui/res/imp/tasklist/task-filters.html

Index: appengine/swarming/ui/res/imp/tasklist/task-filters.html
diff --git a/appengine/swarming/ui/res/imp/tasklist/task-filters.html b/appengine/swarming/ui/res/imp/tasklist/task-filters.html
index ae64c550c280d83de0c7418df0416ae6e077a037..1c109a59ba42ec6d0aaae97ee91d31df1a97c7e2 100644
--- a/appengine/swarming/ui/res/imp/tasklist/task-filters.html
+++ b/appengine/swarming/ui/res/imp/tasklist/task-filters.html
@@ -372,7 +372,10 @@
               // it is more user friendly.
               rest = "";
             }
-            tags.push(col + this.FILTER_SEP + swarming.alias.unapply(rest))
+            if (swarming.alias.DIMENSIONS_WITH_ALIASES.indexOf(col) !== -1) {
+              rest = swarming.alias.unapply(rest);
+            }
+            tags.push(col + this.FILTER_SEP + rest);
           }
         }.bind(this));
         params["tags"] = tags;