$ git clone -n https://src.fedoraproject.org/rpms/php-pecl-mongodb.git /var/lib/mock/f31-build-47294-26831/root/chroot_tmpdir/scmroot/php-pecl-mongodb
Cloning into '/var/lib/mock/f31-build-47294-26831/root/chroot_tmpdir/scmroot/php-pecl-mongodb'...
$ git reset --hard 8921875418df3fae685b941837cde8113b365f73
HEAD is now at 8921875 v1.5.5