$ git clone -n https://src.fedoraproject.org/rpms/dosfstools.git /var/lib/mock/f45-build-7710-368/root/chroot_tmpdir/scmroot/dosfstools
Cloning into '/var/lib/mock/f45-build-7710-368/root/chroot_tmpdir/scmroot/dosfstools'...
$ git fetch origin c996fcd3624f0db455115fbef611d4c5558adc9b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dosfstools
 * [new ref]         c996fcd3624f0db455115fbef611d4c5558adc9b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c996fcd Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild