$ git clone -n https://src.fedoraproject.org/rpms/php-pear-Net-IDNA2.git /var/lib/mock/f45-build-28002-627/root/chroot_tmpdir/scmroot/php-pear-Net-IDNA2
Cloning into '/var/lib/mock/f45-build-28002-627/root/chroot_tmpdir/scmroot/php-pear-Net-IDNA2'...
$ git fetch origin fef1b8eee18341fc9eb3b29f1db4129df3ed70ba:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-pear-Net-IDNA2
 * [new ref]         fef1b8eee18341fc9eb3b29f1db4129df3ed70ba -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fef1b8e Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild