$ git clone -n https://src.fedoraproject.org/rpms/vulkan-loader.git /var/lib/mock/f40-build-787509-134782/root/chroot_tmpdir/scmroot/vulkan-loader
Cloning into '/var/lib/mock/f40-build-787509-134782/root/chroot_tmpdir/scmroot/vulkan-loader'...
$ git fetch origin b99030cca718f24c6ed216cc7d8700824824bd72:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vulkan-loader
 * [new ref]         b99030cca718f24c6ed216cc7d8700824824bd72 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b99030c Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild