$ git clone -n https://src.fedoraproject.org/rpms/php-pecl-yac.git /var/lib/mock/f33-build-274942-51630/root/chroot_tmpdir/scmroot/php-pecl-yac
Cloning into '/var/lib/mock/f33-build-274942-51630/root/chroot_tmpdir/scmroot/php-pecl-yac'...
$ git reset --hard d5f1f71915afefe44d5c093f333b72056035fa96
HEAD is now at d5f1f71 v2.2.1