$ git clone -n https://src.fedoraproject.org/rpms/kernel-headers.git /var/lib/mock/f42-build-869524-176669/root/chroot_tmpdir/scmroot/kernel-headers
Cloning into '/var/lib/mock/f42-build-869524-176669/root/chroot_tmpdir/scmroot/kernel-headers'...
$ git fetch origin a4d1392aeb9d1519c4c43fbbcbf854844e4e2dbe:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kernel-headers
 * [new ref]         a4d1392aeb9d1519c4c43fbbcbf854844e4e2dbe -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a4d1392 Linux v6.14-rc1