$ git clone -n https://src.fedoraproject.org/rpms/ghc-th-lift-instances.git /var/lib/mock/f45-build-10863-424/root/chroot_tmpdir/scmroot/ghc-th-lift-instances
Cloning into '/var/lib/mock/f45-build-10863-424/root/chroot_tmpdir/scmroot/ghc-th-lift-instances'...
$ git fetch origin 75b26cf1c7ca1494c7e832d3a2f260ae337eed7c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-th-lift-instances
 * [new ref]         75b26cf1c7ca1494c7e832d3a2f260ae337eed7c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 75b26cf Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild