$ git clone -n https://src.fedoraproject.org/rpms/ghc-hspec.git /var/lib/mock/f45-build-10402-416/root/chroot_tmpdir/scmroot/ghc-hspec
Cloning into '/var/lib/mock/f45-build-10402-416/root/chroot_tmpdir/scmroot/ghc-hspec'...
$ git fetch origin 73cb34caa96a2c10ec69a87b00f1a41c0af1b6dd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-hspec
 * [new ref]         73cb34caa96a2c10ec69a87b00f1a41c0af1b6dd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 73cb34c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild