$ git clone -n https://src.fedoraproject.org/rpms/maven-shared-incremental.git /var/lib/mock/f40-build-2417345-60573/root/chroot_tmpdir/scmroot/maven-shared-incremental
Cloning into '/var/lib/mock/f40-build-2417345-60573/root/chroot_tmpdir/scmroot/maven-shared-incremental'...
$ git fetch origin 21fa06f71c6130bdb7ba3b5c809990accf4144d0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/maven-shared-incremental
 * [new ref]         21fa06f71c6130bdb7ba3b5c809990accf4144d0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 21fa06f Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild