$ git clone -n https://src.fedoraproject.org/rpms/php-pecl-yaml.git /var/lib/mock/f33-build-192897-46805/root/chroot_tmpdir/scmroot/php-pecl-yaml
Cloning into '/var/lib/mock/f33-build-192897-46805/root/chroot_tmpdir/scmroot/php-pecl-yaml'...
$ git reset --hard e47b731d27b51bd68d4764422b3fae6a521f9cd1
HEAD is now at e47b731 update to 2.1.0 raise dependency on PHP 7.1 fix 32-bit build using patch from   https://github.com/php/pecl-file_formats-yaml/pull/45