$ git clone -n https://src.fedoraproject.org/rpms/kanagram.git /var/lib/mock/f42-build-3287672-41422/root/chroot_tmpdir/scmroot/kanagram
Cloning into '/var/lib/mock/f42-build-3287672-41422/root/chroot_tmpdir/scmroot/kanagram'...
$ git fetch origin 46521cd25fc14dd5bfbb845b99e25ffae70cedda:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kanagram
 * [new ref]         46521cd25fc14dd5bfbb845b99e25ffae70cedda -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 46521cd Rebuild for ppc64le enablement