$ git clone -n https://src.fedoraproject.org/rpms/php-pear.git /var/lib/mock/f45-build-27986-627/root/chroot_tmpdir/scmroot/php-pear
Cloning into '/var/lib/mock/f45-build-27986-627/root/chroot_tmpdir/scmroot/php-pear'...
$ git fetch origin 229d780fb906d5395a95d60deb094ffee16a43ae:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-pear
 * [new ref]         229d780fb906d5395a95d60deb094ffee16a43ae -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 229d780 update Archive_Tar to 1.6.1