$ git clone -n https://src.fedoraproject.org/rpms/kpmcore.git /var/lib/mock/f42-build-871086-177459/root/chroot_tmpdir/scmroot/kpmcore
Cloning into '/var/lib/mock/f42-build-871086-177459/root/chroot_tmpdir/scmroot/kpmcore'...
$ git fetch origin 45698eb49c971c16a5013a235346d10a92a49e9b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kpmcore
 * [new ref]         45698eb49c971c16a5013a235346d10a92a49e9b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 45698eb 24.12.2