$ git clone -n https://src.fedoraproject.org/rpms/kanagram.git /var/lib/mock/f42-build-3471507-45773/root/chroot_tmpdir/scmroot/kanagram
Cloning into '/var/lib/mock/f42-build-3471507-45773/root/chroot_tmpdir/scmroot/kanagram'...
$ git fetch origin 6544c7c73d70f822dc32c767f6a997865eb58f1d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kanagram
 * [new ref]         6544c7c73d70f822dc32c767f6a997865eb58f1d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6544c7c 25.03.80