Issue #3239472 by stefanos.petrakis, danflanagan8, sjerdo, kporras07, alorenc,...

Issue #3239472 by stefanos.petrakis, danflanagan8, sjerdo, kporras07, alorenc, borutpiletic, tanc, benjifisher, alexpott, Kristen Pol, larowlan, longwave: preg_split in _filter_url breaks for long html tags

(cherry picked from commit e7ded380)