$ git clone -n https://src.fedoraproject.org/rpms/perl-JSON-WebToken.git /var/lib/mock/f40-build-2625905-65225/root/chroot_tmpdir/scmroot/perl-JSON-WebToken
Cloning into '/var/lib/mock/f40-build-2625905-65225/root/chroot_tmpdir/scmroot/perl-JSON-WebToken'...
$ git fetch origin c2117b71d359a721785e709ad12d0df02b05add4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-JSON-WebToken
 * [new ref]         c2117b71d359a721785e709ad12d0df02b05add4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c2117b7 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild