$ git clone -n https://src.fedoraproject.org/rpms/umbrello.git /var/lib/mock/f38-build-side-42-init-devel-1006401-29377/root/chroot_tmpdir/scmroot/umbrello
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1006401-29377/root/chroot_tmpdir/scmroot/umbrello'...
$ git fetch origin 64df9b46bf0bbe94cffba159c35e8758d9edf2a7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/umbrello
 * [new ref]         64df9b46bf0bbe94cffba159c35e8758d9edf2a7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 64df9b4 feat: 22.12.3