Fix 'Attach a file' link in new tag form

app/views/projects/_zen.html.haml

@@ -2,9 +2,12 @@
   %input#zen-toggle-comment.zen-toggle-comment(tabindex="-1" type="checkbox")
   .zen-backdrop
     - classes << ' js-gfm-input markdown-area'
-    = f.text_area attr, class: classes, placeholder: ''
+    - if defined?(f) && f
+      = f.text_area attr, class: classes, placeholder: ''
+    - else
+      = text_area_tag attr, nil, class: classes, placeholder: ''
     %a.zen-enter-link(tabindex="-1" href="#")
-      %i.fa.fa-expand
+      = icon('expand')
       Edit in fullscreen
     %a.zen-leave-link(href="#")
-      %i.fa.fa-compress
+      = icon('compress')

app/views/projects/releases/edit.html.haml

@@ -11,10 +11,9 @@
 .prepend-top-default
   = form_for(@release, method: :put, url: namespace_project_tag_release_path(@project.namespace, @project, @tag.name), html: { class: 'form-horizontal gfm-form release-form' }) do |f|
     = render layout: 'projects/md_preview', locals: { preview_class: "md-preview", referenced_users: true } do
-      = render 'projects/zen', f: f, attr: :description, classes: 'description js-quick-submit'
+      = render 'projects/zen', f: f, attr: :description, classes: 'description js-quick-submit form-control'
       = render 'projects/notes/hints'
       .error-alert
       .prepend-top-default
         = f.submit 'Save changes', class: 'btn btn-save'
         = link_to "Cancel", namespace_project_tag_path(@project.namespace, @project, @tag.name), class: "btn btn-default btn-cancel"
-

app/views/projects/tags/new.html.haml

@@ -10,7 +10,7 @@
   New git tag
 %hr
 
-= form_tag namespace_project_tags_path, method: :post, id: "new-tag-form", class: "form-horizontal tag-form" do
+= form_tag namespace_project_tags_path, method: :post, id: "new-tag-form", class: "form-horizontal gfm-form tag-form" do
   .form-group
     = label_tag :tag_name, 'Name for new tag', class: 'control-label'
     .col-sm-10
@@ -30,16 +30,7 @@
     = label_tag :release_description, 'Release notes', class: 'control-label'
     .col-sm-10
       = render layout: 'projects/md_preview', locals: { preview_class: "md-preview", referenced_users: true } do
-        .zennable
-          %input#zen-toggle-comment.zen-toggle-comment(tabindex="-1" type="checkbox")
-          .zen-backdrop
-            = text_area_tag :release_description, nil, class: 'js-gfm-input markdown-area description js-quick-submit form-control', placeholder: ''
-            %a.zen-enter-link(tabindex="-1" href="#")
-              = icon('expand')
-              Edit in fullscreen
-            %a.zen-leave-link(href="#")
-              = icon('compress')
-
+        = render 'projects/zen', attr: :release_description, classes: 'description js-quick-submit form-control'
         = render 'projects/notes/hints'
         .help-block (Optional) You can add release notes to your tag. It will be stored in the GitLab database and shown on the tags page
   .form-actions