files: fixed editing of files for branches with `/` in the name.

- currently we're not supporting such names, so we need to use the reference commit_id.

rhodecode/controllers/files.py

@@ -241,7 +241,11 b' class FilesController(BaseRepoController'
 
                 c.on_branch_head = self._is_valid_head(
                     commit_id, c.rhodecode_repo)
-                c.branch_or_raw_id = c.commit.branch or c.commit.raw_id
+
+                branch = c.commit.branch if (
+                    c.commit.branch and '/' not in c.commit.branch) else None
+                c.branch_or_raw_id = branch or c.commit.raw_id
+                c.branch_name = c.commit.branch or h.short_id(c.commit.raw_id)
 
                 author = c.file_last_commit.author
                 c.authors = [(h.email(author),

rhodecode/templates/files/files_source.mako

@@ -40,7 +40,7 b''
            |
          %if c.on_branch_head and c.branch_or_raw_id and not c.file.is_binary:
             <a href="${h.url('files_edit_home',repo_name=c.repo_name,revision=c.branch_or_raw_id,f_path=c.f_path, anchor='edit')}">
-              ${_('Edit on Branch:%s') % c.branch_or_raw_id}
+              ${_('Edit on Branch:%s') % c.branch_name}
             </a>
             | <a class="btn-danger btn-link" href="${h.url('files_delete_home',repo_name=c.repo_name,revision=c.branch_or_raw_id,f_path=c.f_path, anchor='edit')}">${_('Delete')}
             </a>