$ git clone -n https://src.fedoraproject.org/rpms/ghc-HsOpenSSL-x509-system.git /var/lib/mock/f38-build-side-42-init-devel-954830-28786/root/chroot_tmpdir/scmroot/ghc-HsOpenSSL-x509-system
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-954830-28786/root/chroot_tmpdir/scmroot/ghc-HsOpenSSL-x509-system'...
$ git fetch origin 241720c7d7a2ed8e6d663ca7d72f683b8017ab51:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-HsOpenSSL-x509-system
 * [new ref]         241720c7d7a2ed8e6d663ca7d72f683b8017ab51 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 241720c Convert to %autorelease and %autochangelog