$ git clone -n https://src.fedoraproject.org/rpms/ghc-GLURaw.git /var/lib/mock/f45-build-9886-411/root/chroot_tmpdir/scmroot/ghc-GLURaw
Cloning into '/var/lib/mock/f45-build-9886-411/root/chroot_tmpdir/scmroot/ghc-GLURaw'...
$ git fetch origin 7a013b83159367aaff3cd330e3577e994676d18f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-GLURaw
 * [new ref]         7a013b83159367aaff3cd330e3577e994676d18f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7a013b8 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild