$ git clone -n https://src.fedoraproject.org/rpms/perl-Image-Size.git /var/lib/mock/f39-build-1433075-31862/root/chroot_tmpdir/scmroot/perl-Image-Size
Cloning into '/var/lib/mock/f39-build-1433075-31862/root/chroot_tmpdir/scmroot/perl-Image-Size'...
$ git fetch origin 967ee06fd3c86b7d03c8878afb16c3bc58b11d25:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Image-Size
 * [new ref]         967ee06fd3c86b7d03c8878afb16c3bc58b11d25 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 967ee06 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild