$ git clone -n https://src.fedoraproject.org/rpms/umbrello.git /var/lib/mock/f40-build-1956150-25196/root/chroot_tmpdir/scmroot/umbrello
Cloning into '/var/lib/mock/f40-build-1956150-25196/root/chroot_tmpdir/scmroot/umbrello'...
$ git fetch origin b22b07efdd0788cd55546ea7be96bf84611b7bc3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/umbrello
 * [new ref]         b22b07efdd0788cd55546ea7be96bf84611b7bc3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b22b07e 24.05.2