Revert go-gitea#5877

This unfortunately was not the solution.

Signed-off-by: Andrew Thornton <art27@cantab.net>

Author: zeripath

templates/repo/home.tmpl

@@ -59,7 +59,7 @@
 		<div class="ui stackable secondary menu mobile--margin-between-items mobile--no-negative-margins">
 			{{if and .PullRequestCtx.Allowed .IsViewBranch (not .Repository.IsArchived)}}
 				<div class="fitted item">
-					<a href="{{.BaseRepo.Link}}/compare/{{.BaseRepo.DefaultBranch | EscapePound}}...{{ if .Repository.IsFork }}{{.Repository.Owner.Name}}{{ else }}{{ .SignedUserName }}{{ end }}:{{.BranchName | EscapePound}}">
+					<a href="{{.BaseRepo.Link}}/compare/{{.BaseRepo.DefaultBranch | EscapePound}}...{{if ne .Repository.Owner.Name .BaseRepo.Owner.Name}}{{.Repository.Owner.Name}}:{{end}}{{.BranchName | EscapePound}}">
 					<button class="ui green tiny compact button"><i class="octicon octicon-git-compare"></i></button>
 					</a>
 				</div>