Fix commit name in Apply Patch page (go-gitea#23086)

Fixes
go-gitea#22621 (comment)

Author: yp05327

routers/web/repo/patch.go

@@ -25,6 +25,8 @@ const (
 func NewDiffPatch(ctx *context.Context) {
 	canCommit := renderCommitRights(ctx)
 
+	ctx.Data["PageIsPatch"] = true
+
 	ctx.Data["TreePath"] = ""
 
 	ctx.Data["commit_summary"] = ""
@@ -51,6 +53,7 @@ func NewDiffPatchPost(ctx *context.Context) {
 	if form.CommitChoice == frmCommitChoiceNewBranch {
 		branchName = form.NewBranchName
 	}
+	ctx.Data["PageIsPatch"] = true
 	ctx.Data["TreePath"] = ""
 	ctx.Data["BranchLink"] = ctx.Repo.RepoLink + "/src/" + ctx.Repo.BranchNameSubURL()
 	ctx.Data["FileContent"] = form.Content

templates/repo/editor/commit_form.tmpl

@@ -9,7 +9,7 @@
 			{{.locale.Tr "repo.editor.commit_changes"}}
 		{{- end}}</h3>
 		<div class="field">
-			<input name="commit_summary" placeholder="{{if .PageIsDelete}}{{.locale.Tr "repo.editor.delete" .TreePath}}{{else if .PageIsUpload}}{{.locale.Tr "repo.editor.upload_files_to_dir" .TreePath}}{{else if .IsNewFile}}{{.locale.Tr "repo.editor.add_tmpl"}}{{else}}{{.locale.Tr "repo.editor.update" .TreePath}}{{end}}" value="{{.commit_summary}}" autofocus>
+			<input name="commit_summary" placeholder="{{if .PageIsDelete}}{{.locale.Tr "repo.editor.delete" .TreePath}}{{else if .PageIsUpload}}{{.locale.Tr "repo.editor.upload_files_to_dir" .TreePath}}{{else if .IsNewFile}}{{.locale.Tr "repo.editor.add_tmpl"}}{{else if .PageIsPatch}}{{.locale.Tr "repo.editor.patch"}}{{else}}{{.locale.Tr "repo.editor.update" .TreePath}}{{end}}" value="{{.commit_summary}}" autofocus>
 		</div>
 		<div class="field">
 			<textarea name="commit_message" placeholder="{{.locale.Tr "repo.editor.commit_message_desc"}}" rows="5">{{.commit_message}}</textarea>