when the update request doesn't intend to update attachments (eg: change checkbox state), ignore attachment updates (go-gitea#16762)

Author: wxiaoguang

routers/web/repo/issue.go

@@ -1728,10 +1728,12 @@ func UpdateIssueContent(ctx *context.Context) {
 		return
 	}
 
-	files := ctx.QueryStrings("files[]")
-	if err := updateAttachments(issue, files); err != nil {
-		ctx.ServerError("UpdateAttachments", err)
-		return
+	// when update the request doesn't intend to update attachments (eg: change checkbox state), ignore attachment updates
+	if !ctx.QueryBool("ignore_attachments") {
+		if err := updateAttachments(issue, ctx.QueryStrings("files[]")); err != nil {
+			ctx.ServerError("UpdateAttachments", err)
+			return
+		}
 	}
 
 	content, err := markdown.RenderString(&markup.RenderContext{
@@ -2149,20 +2151,19 @@ func UpdateCommentContent(ctx *context.Context) {
 		return
 	}
 
-	if ctx.QueryBool("ignore_attachments") {
-		return
-	}
-
 	if comment.Type == models.CommentTypeComment {
 		if err := comment.LoadAttachments(); err != nil {
 			ctx.ServerError("LoadAttachments", err)
 			return
 		}
 	}
 
-	if err := updateAttachments(comment, ctx.QueryStrings("files[]")); err != nil {
-		ctx.ServerError("UpdateAttachments", err)
-		return
+	// when the update request doesn't intend to update attachments (eg: change checkbox state), ignore attachment updates
+	if !ctx.QueryBool("ignore_attachments") {
+		if err := updateAttachments(comment, ctx.QueryStrings("files[]")); err != nil {
+			ctx.ServerError("UpdateAttachments", err)
+			return
+		}
 	}
 
 	content, err := markdown.RenderString(&markup.RenderContext{