$ git clone -n https://src.fedoraproject.org/rpms/claws-mail.git /var/lib/mock/f39-build-1579870-38044/root/chroot_tmpdir/scmroot/claws-mail
Cloning into '/var/lib/mock/f39-build-1579870-38044/root/chroot_tmpdir/scmroot/claws-mail'...
$ git fetch origin db158529cdd2cc0825ad3d34f01450c2f4c89138:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/claws-mail
 * [new ref]         db158529cdd2cc0825ad3d34f01450c2f4c89138 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at db15852 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild