$ git clone -n https://src.fedoraproject.org/rpms/ghc-mockery.git /var/lib/mock/f45-build-10539-418/root/chroot_tmpdir/scmroot/ghc-mockery
Cloning into '/var/lib/mock/f45-build-10539-418/root/chroot_tmpdir/scmroot/ghc-mockery'...
$ git fetch origin 27c2355929eac4ea111a3082c6a01415e4e45cf9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-mockery
 * [new ref]         27c2355929eac4ea111a3082c6a01415e4e45cf9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 27c2355 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild