$ git clone -n https://src.fedoraproject.org/rpms/R-pbapply.git /var/lib/mock/f45-build-6285-347/root/chroot_tmpdir/scmroot/R-pbapply
Cloning into '/var/lib/mock/f45-build-6285-347/root/chroot_tmpdir/scmroot/R-pbapply'...
$ git fetch origin 864a80f605e83d82dbca6edad6aa2468fc325b42:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-pbapply
 * [new ref]         864a80f605e83d82dbca6edad6aa2468fc325b42 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 864a80f Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild