$ git clone -n https://src.fedoraproject.org/rpms/clamav.git /var/lib/mock/f42-build-3531555-46322/root/chroot_tmpdir/scmroot/clamav
Cloning into '/var/lib/mock/f42-build-3531555-46322/root/chroot_tmpdir/scmroot/clamav'...
$ git fetch origin a5a23da3f55a76acdeb2ff2a0799bc00b0fa7f71:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/clamav
 * [new ref]         a5a23da3f55a76acdeb2ff2a0799bc00b0fa7f71 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a5a23da Add sysusers.d config file to allow rpm to create users/groups automatically