$ git clone -n https://src.fedoraproject.org/rpms/mirrormanager2.git /var/lib/mock/f41-build-1037644-18807/root/chroot_tmpdir/scmroot/mirrormanager2
Cloning into '/var/lib/mock/f41-build-1037644-18807/root/chroot_tmpdir/scmroot/mirrormanager2'...
$ git fetch origin b8596246e3c6591e9059555ea6de728f9b0d00dd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mirrormanager2
 * [new ref]         b8596246e3c6591e9059555ea6de728f9b0d00dd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b859624 Rebuilt for Python 3.13