$ git clone -n https://src.fedoraproject.org/rpms/ghc-warp.git /var/lib/mock/f45-build-52268-908/root/chroot_tmpdir/scmroot/ghc-warp
Cloning into '/var/lib/mock/f45-build-52268-908/root/chroot_tmpdir/scmroot/ghc-warp'...
$ git fetch origin 9197425ae6bcf0b66469528bc06c53e3b8ade183:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-warp
 * [new ref]         9197425ae6bcf0b66469528bc06c53e3b8ade183 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9197425 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild