$ git clone -n https://src.fedoraproject.org/rpms/virtualbox-guest-additions.git /var/lib/mock/f41-build-855853-167429/root/chroot_tmpdir/scmroot/virtualbox-guest-additions
Cloning into '/var/lib/mock/f41-build-855853-167429/root/chroot_tmpdir/scmroot/virtualbox-guest-additions'...
$ git fetch origin 22debfef4c93ff96bd58ff102bc72fcc41235090:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/virtualbox-guest-additions
 * [new ref]         22debfef4c93ff96bd58ff102bc72fcc41235090 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 22debfe Update virtualbox-guest-additions to 7.1.2 (#2311545)