FIX download diff/patch from commit (#8792)

* send fix

* restart CI

* us Commit only when available

* CI.redo()

* more specific if statement

Co-Authored-By: mrsdizzie <info@mrsdizzie.com>

templates/repo/diff/options_dropdown.tmpl

@@ -3,7 +3,12 @@
 	<i class="dropdown icon"></i>
 	<div class="menu">
 		<a class="item tiny basic toggle button" data-target="#diff-files">{{.i18n.Tr "repo.diff.show_diff_stats"}}</a>
-		<a class="item" href="{{$.RepoLink}}/pulls/{{.Issue.Index}}.patch" download="{{.Issue.Index}}.patch">{{.i18n.Tr "repo.diff.download_patch"}}</a>
-		<a class="item" href="{{$.RepoLink}}/pulls/{{.Issue.Index}}.diff" download="{{.Issue.Index}}.diff">{{.i18n.Tr "repo.diff.download_diff"}}</a>
+		{{if .Issue.Index}}
+			<a class="item" href="{{$.RepoLink}}/pulls/{{.Issue.Index}}.patch" download="{{.Issue.Index}}.patch">{{.i18n.Tr "repo.diff.download_patch"}}</a>
+			<a class="item" href="{{$.RepoLink}}/pulls/{{.Issue.Index}}.diff" download="{{.Issue.Index}}.diff">{{.i18n.Tr "repo.diff.download_diff"}}</a>
+		{{else if .Commit.ID.String}}
+			<a class="item" href="{{$.RepoLink}}/commit/{{.Commit.ID.String}}.patch" download="{{ShortSha .Commit.ID.String}}.patch">{{.i18n.Tr "repo.diff.download_patch"}}</a>
+			<a class="item" href="{{$.RepoLink}}/commit/{{.Commit.ID.String}}.diff" download="{{ShortSha .Commit.ID.String}}.diff">{{.i18n.Tr "repo.diff.download_diff"}}</a>
+		{{end}}
 	</div>
 </div>