$ git clone -n https://src.fedoraproject.org/rpms/php-pecl-yaml.git /var/lib/mock/f33-build-393153-62340/root/chroot_tmpdir/scmroot/php-pecl-yaml
Cloning into '/var/lib/mock/f33-build-393153-62340/root/chroot_tmpdir/scmroot/php-pecl-yaml'...
$ git reset --hard e89e448971edad9a0aef63dfc5d2817f99ce5cb5
HEAD is now at e89e448 v2.2.1