$ git clone -n https://src.fedoraproject.org/rpms/ghc-unix-time.git /var/lib/mock/f45-build-10881-425/root/chroot_tmpdir/scmroot/ghc-unix-time
Cloning into '/var/lib/mock/f45-build-10881-425/root/chroot_tmpdir/scmroot/ghc-unix-time'...
$ git fetch origin da6e35c15df3fa623ac18107ccac99582afe10f3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-unix-time
 * [new ref]         da6e35c15df3fa623ac18107ccac99582afe10f3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at da6e35c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild