When initialising repositories ensure that the user doing the creation is the initializer (#11601) (#11608)

Backport #11601

Fix #10760

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

modules/repository/create.go

@@ -47,7 +47,7 @@ func CreateRepository(doer, u *models.User, opts models.CreateRepoOptions) (_ *m
 		// No need for init mirror.
 		if !opts.IsMirror {
 			repoPath := models.RepoPath(u.Name, repo.Name)
-			if err = initRepository(ctx, repoPath, u, repo, opts); err != nil {
+			if err = initRepository(ctx, repoPath, doer, repo, opts); err != nil {
 				if err2 := os.RemoveAll(repoPath); err2 != nil {
 					log.Error("initRepository: %v", err)
 					return fmt.Errorf(