Add UI/UX improvements

- Leave 'too many tags to search' always visible
- Add different message to the branch/tags so it states its unavailable

app/helpers/commits_helper.rb

@@ -60,7 +60,7 @@ module CommitsHelper
     branches.include?(project.default_branch) ? branches.delete(project.default_branch) : branches.pop
   end
 
-  # returns a link formatted as a commit branch link
+  # Returns a link formatted as a commit branch link
   def commit_branch_link(url, text)
     link_to(url, class: 'label label-gray ref-name') do
       icon('code-fork') + " #{text}"
@@ -74,13 +74,25 @@ module CommitsHelper
     end.join(' ').html_safe
   end
 
-  # returns a link formatted as a commit tag link
+  # Returns a link formatted as a commit tag link
   def commit_tag_link(url, text)
     link_to(url, class: 'label label-gray ref-name') do
       icon('tag') + " #{text}"
     end
   end
 
+  def branches_unavailable_message
+    link_to('#', class: 'label label-gray ref-name', title: 'Project has too many branches to search') do
+      icon('tag') + ' Branches unavailable'
+    end
+  end
+
+  def tags_unavailable_message
+    link_to('#', class: 'label label-gray ref-name', title: 'Project has too many tags to search') do
+      icon('tag') + ' Tags unavailable'
+    end
+  end
+
   # Returns the sorted links to tags, separated by a comma
   def commit_tags_links(project, tags)
     sorted = VersionSorter.rsort(tags)

app/views/projects/commit/branches.html.haml

 - if @branches_limit_exceeded
-  = commit_branch_link('#', _('Too many branches to search'))
+  = branches_unavailable_message
 - elsif @branches.any?
   - branch = commit_default_branch(@project, @branches)
   = commit_branch_link(project_ref_path(@project, branch), branch)
 
 -# `commit_default_branch` deletes the default branch from `@branches`,
--# so only render this if we have more branches or tags left
-- if @branches.any? || @tags.any? || @tags_limit_exceeded
-  %span
-    = link_to "…", "#", class: "js-details-expand label label-gray"
-
-    %span.js-details-content.hide
-      = commit_branches_links(@project, @branches) if @branches.any?
-      - if @tags_limit_exceeded
-        = commit_tag_link('#', _('Too many tags to search'))
-      - elsif @tags.any?
+  -# so only render this if we have more branches or tags left
+- if @tags_limit_exceeded
+  = tags_unavailable_message
+- elsif @tags.any?
   = commit_tags_links(@project, @tags)