$ git clone -n https://src.fedoraproject.org/rpms/bcel.git /var/lib/mock/f41-build-1232144-22865/root/chroot_tmpdir/scmroot/bcel
Cloning into '/var/lib/mock/f41-build-1232144-22865/root/chroot_tmpdir/scmroot/bcel'...
$ git fetch origin 13ead7692506a19f08938e5f22c898c0e3a8acaf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/bcel
 * [new ref]         13ead7692506a19f08938e5f22c898c0e3a8acaf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 13ead76 Rebuilt for java-21-openjdk as system jdk