$ git clone -n https://src.fedoraproject.org/rpms/libarcus.git /var/lib/mock/f41-build-side-2-python-2708254-30471/root/chroot_tmpdir/scmroot/libarcus
Cloning into '/var/lib/mock/f41-build-side-2-python-2708254-30471/root/chroot_tmpdir/scmroot/libarcus'...
$ git fetch origin bc6028b7f677ee942ee365d805e34c4ee91d0b80:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libarcus
 * [new ref]         bc6028b7f677ee942ee365d805e34c4ee91d0b80 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bc6028b Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild