$ git clone -n https://src.fedoraproject.org/rpms/ghc-Boolean.git /var/lib/mock/f45-build-9894-411/root/chroot_tmpdir/scmroot/ghc-Boolean
Cloning into '/var/lib/mock/f45-build-9894-411/root/chroot_tmpdir/scmroot/ghc-Boolean'...
$ git fetch origin d155654620a003290d37d1349787a2014af68d78:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-Boolean
 * [new ref]         d155654620a003290d37d1349787a2014af68d78 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d155654 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild