$ git clone -n https://src.fedoraproject.org/rpms/ghc-pretty-simple.git /var/lib/mock/f45-build-10623-419/root/chroot_tmpdir/scmroot/ghc-pretty-simple
Cloning into '/var/lib/mock/f45-build-10623-419/root/chroot_tmpdir/scmroot/ghc-pretty-simple'...
$ git fetch origin 17f1760234485aeeca664be4b72497f40d6a95a9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-pretty-simple
 * [new ref]         17f1760234485aeeca664be4b72497f40d6a95a9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 17f1760 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild