$ git clone -n https://src.fedoraproject.org/rpms/xbyak.git /var/lib/mock/f39-build-1741680-41367/root/chroot_tmpdir/scmroot/xbyak
Cloning into '/var/lib/mock/f39-build-1741680-41367/root/chroot_tmpdir/scmroot/xbyak'...
$ git fetch origin 99ae59d6def00b0d3c0583f3c73041236494a5ca:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xbyak
 * [new ref]         99ae59d6def00b0d3c0583f3c73041236494a5ca -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 99ae59d Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild