Issue #2738879 by mr.baileys, trobey, dawehner, alexpott, ravi.shankar, catch,...

Issue #2738879 by mr.baileys, trobey, dawehner, alexpott, ravi.shankar, catch, Fernly: system.schema can end up with missing schema information for some modules, resulting in hook_update_N() not getting called

(cherry picked from commit 8faf10c9)
(cherry picked from commit b57a81c7)