$ git clone -n https://src.fedoraproject.org/rpms/vulkan-volk.git /var/lib/mock/f41-build-846690-163186/root/chroot_tmpdir/scmroot/vulkan-volk
Cloning into '/var/lib/mock/f41-build-846690-163186/root/chroot_tmpdir/scmroot/vulkan-volk'...
$ git fetch origin d6c529171a4f632e3458a513a84cdbf9434a6633:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vulkan-volk
 * [new ref]         d6c529171a4f632e3458a513a84cdbf9434a6633 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d6c5291 Update to 1.3.290.0 SDK