$ git clone -n https://src.fedoraproject.org/rpms/vulkan-headers.git /var/lib/mock/f39-build-1459825-33162/root/chroot_tmpdir/scmroot/vulkan-headers
Cloning into '/var/lib/mock/f39-build-1459825-33162/root/chroot_tmpdir/scmroot/vulkan-headers'...
$ git fetch origin 4c96baed395791a3176c7e2178f99d6db949d336:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vulkan-headers
 * [new ref]         4c96baed395791a3176c7e2178f99d6db949d336 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4c96bae Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild