$ git clone -n https://src.fedoraproject.org/rpms/tayga.git /var/lib/mock/f41-build-1164659-21583/root/chroot_tmpdir/scmroot/tayga
Cloning into '/var/lib/mock/f41-build-1164659-21583/root/chroot_tmpdir/scmroot/tayga'...
$ git fetch origin 4ba7249438c1cdaf18844cadbedaa83eb81f9478:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/tayga
 * [new ref]         4ba7249438c1cdaf18844cadbedaa83eb81f9478 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4ba7249 Eliminate use of obsolete %patchN syntax (#2283636)