$ git clone -n https://src.fedoraproject.org/rpms/zonefs-tools.git /var/lib/mock/f45-build-39378-734/root/chroot_tmpdir/scmroot/zonefs-tools
Cloning into '/var/lib/mock/f45-build-39378-734/root/chroot_tmpdir/scmroot/zonefs-tools'...
$ git fetch origin 80098cf08415f308927813a1e06ccdb1f92d47dd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/zonefs-tools
 * [new ref]         80098cf08415f308927813a1e06ccdb1f92d47dd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 80098cf opt-in to packit for rawhide