$ git clone -n https://src.fedoraproject.org/rpms/rubygem-idn.git /var/lib/mock/f41-build-819809-151919/root/chroot_tmpdir/scmroot/rubygem-idn
Cloning into '/var/lib/mock/f41-build-819809-151919/root/chroot_tmpdir/scmroot/rubygem-idn'...
$ git fetch origin 7a8232df63610a3b7e87960339fa85047ee7c838:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-idn
 * [new ref]         7a8232df63610a3b7e87960339fa85047ee7c838 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7a8232d Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild