$ git clone -n https://src.fedoraproject.org/rpms/bcel.git /var/lib/mock/f40-build-2667912-67176/root/chroot_tmpdir/scmroot/bcel
Cloning into '/var/lib/mock/f40-build-2667912-67176/root/chroot_tmpdir/scmroot/bcel'...
$ git fetch origin 91682df9d98efcf17f4f7557320cdf49179657dd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/bcel
 * [new ref]         91682df9d98efcf17f4f7557320cdf49179657dd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 91682df Rebuilt for java-21-openjdk as system jdk