$ git clone -n https://src.fedoraproject.org/rpms/perl-HTML-FormatExternal.git /var/lib/mock/f39-build-1436269-32053/root/chroot_tmpdir/scmroot/perl-HTML-FormatExternal
Cloning into '/var/lib/mock/f39-build-1436269-32053/root/chroot_tmpdir/scmroot/perl-HTML-FormatExternal'...
$ git fetch origin 683fbcf4e94ffa68366c3c2d15dcef4b51ee0159:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-HTML-FormatExternal
 * [new ref]         683fbcf4e94ffa68366c3c2d15dcef4b51ee0159 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 683fbcf Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild