$ git clone -n https://src.fedoraproject.org/rpms/ghc-copilot-libraries.git /var/lib/mock/f41-build-859401-168687/root/chroot_tmpdir/scmroot/ghc-copilot-libraries
Cloning into '/var/lib/mock/f41-build-859401-168687/root/chroot_tmpdir/scmroot/ghc-copilot-libraries'...
$ git fetch origin 71caf571c77bb92f5b670c5d643c8c53ac092c35:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-copilot-libraries
 * [new ref]         71caf571c77bb92f5b670c5d643c8c53ac092c35 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 71caf57 Convert to %autorelease and %autochangelog