$ git clone -n https://src.fedoraproject.org/rpms/ghc-bugzilla-redhat.git /var/lib/mock/f38-build-side-42-init-devel-1077773-29816/root/chroot_tmpdir/scmroot/ghc-bugzilla-redhat
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1077773-29816/root/chroot_tmpdir/scmroot/ghc-bugzilla-redhat'...
$ git fetch origin 5a2a31544b46122b7eb189f1a38199ea8beb990a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-bugzilla-redhat
 * [new ref]         5a2a31544b46122b7eb189f1a38199ea8beb990a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5a2a315 Convert to %autorelease and %autochangelog