$ git clone -n https://git.cclinux.org/stage/rpms/vulkan-headers.git /mnt/compose/mock/dist-circle8-build-99907-49027/root/chroot_tmpdir/scmroot/vulkan-headers
Cloning into '/mnt/compose/mock/dist-circle8-build-99907-49027/root/chroot_tmpdir/scmroot/vulkan-headers'...
$ git fetch origin 001476c3678c66e69242f28c00744581c2c7034a:KOJI_FETCH_HEAD
From https://git.cclinux.org/stage/rpms/vulkan-headers
 * [new ref]         001476c3678c66e69242f28c00744581c2c7034a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 001476c import vulkan-headers-1.3.239.0-1.el8