$ git clone -n https://src.fedoraproject.org/rpms/ghc-MonadCatchIO-mtl.git /var/lib/mock/f38-build-side-42-init-devel-650404-26477/root/chroot_tmpdir/scmroot/ghc-MonadCatchIO-mtl
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-650404-26477/root/chroot_tmpdir/scmroot/ghc-MonadCatchIO-mtl'...
$ git fetch origin 3a2cfa58f46166a716fa1de133f7497a63508bfe:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-MonadCatchIO-mtl
 * [new ref]         3a2cfa58f46166a716fa1de133f7497a63508bfe -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3a2cfa5 Convert to %autorelease and %autochangelog