$ git clone -n https://src.fedoraproject.org/rpms/ptyxis.git /var/lib/mock/f42-build-side-1-3534294-46548/root/chroot_tmpdir/scmroot/ptyxis
Cloning into '/var/lib/mock/f42-build-side-1-3534294-46548/root/chroot_tmpdir/scmroot/ptyxis'...
$ git fetch origin 0e402333391193e0c9e937631b1b5860763625e9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ptyxis
 * [new ref]         0e402333391193e0c9e937631b1b5860763625e9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0e40233 Merge branch 'rawhide' into f42