diff --git a/models/issues/comment.go b/models/issues/comment.go
index 6877991a93..291714799b 100644
--- a/models/issues/comment.go
+++ b/models/issues/comment.go
@@ -1549,3 +1549,8 @@ func FixCommentTypeLabelWithOutsideLabels() (int64, error) {
 
 	return res.RowsAffected()
 }
+
+// HasOriginalAuthor returns if a comment was migrated and has an original author.
+func (c *Comment) HasOriginalAuthor() bool {
+	return c.OriginalAuthor != "" && c.OriginalAuthorID != 0
+}
diff --git a/models/issues/issue.go b/models/issues/issue.go
index b9aa649d21..3e2620691a 100644
--- a/models/issues/issue.go
+++ b/models/issues/issue.go
@@ -2466,3 +2466,8 @@ func DeleteOrphanedIssues() error {
 	}
 	return nil
 }
+
+// HasOriginalAuthor returns if an issue was migrated and has an original author.
+func (issue *Issue) HasOriginalAuthor() bool {
+	return issue.OriginalAuthor != "" && issue.OriginalAuthorID != 0
+}
diff --git a/routers/web/repo/issue.go b/routers/web/repo/issue.go
index 82abc85a19..a64d8425df 100644
--- a/routers/web/repo/issue.go
+++ b/routers/web/repo/issue.go
@@ -1118,7 +1118,11 @@ func NewIssuePost(ctx *context.Context) {
 }
 
 // roleDescriptor returns the Role Descriptor for a comment in/with the given repo, poster and issue
-func roleDescriptor(ctx stdCtx.Context, repo *repo_model.Repository, poster *user_model.User, issue *issues_model.Issue) (issues_model.RoleDescriptor, error) {
+func roleDescriptor(ctx stdCtx.Context, repo *repo_model.Repository, poster *user_model.User, issue *issues_model.Issue, hasOriginalAuthor bool) (issues_model.RoleDescriptor, error) {
+	if hasOriginalAuthor {
+		return issues_model.RoleDescriptorNone, nil
+	}
+
 	perm, err := access_model.GetUserRepoPermission(ctx, repo, poster)
 	if err != nil {
 		return issues_model.RoleDescriptorNone, err
@@ -1420,7 +1424,7 @@ func ViewIssue(ctx *context.Context) {
 	// check if dependencies can be created across repositories
 	ctx.Data["AllowCrossRepositoryDependencies"] = setting.Service.AllowCrossRepositoryDependencies
 
-	if issue.ShowRole, err = roleDescriptor(ctx, repo, issue.Poster, issue); err != nil {
+	if issue.ShowRole, err = roleDescriptor(ctx, repo, issue.Poster, issue, issue.HasOriginalAuthor()); err != nil {
 		ctx.ServerError("roleDescriptor", err)
 		return
 	}
@@ -1459,7 +1463,7 @@ func ViewIssue(ctx *context.Context) {
 				continue
 			}
 
-			comment.ShowRole, err = roleDescriptor(ctx, repo, comment.Poster, issue)
+			comment.ShowRole, err = roleDescriptor(ctx, repo, comment.Poster, issue, comment.HasOriginalAuthor())
 			if err != nil {
 				ctx.ServerError("roleDescriptor", err)
 				return
@@ -1558,7 +1562,7 @@ func ViewIssue(ctx *context.Context) {
 							continue
 						}
 
-						c.ShowRole, err = roleDescriptor(ctx, repo, c.Poster, issue)
+						c.ShowRole, err = roleDescriptor(ctx, repo, c.Poster, issue, c.HasOriginalAuthor())
 						if err != nil {
 							ctx.ServerError("roleDescriptor", err)
 							return