Don't explode when we can't find version info
Don't explode when we can't find version info

Notices may contain only partially-correct information about the amendments.
Rather than exploding when there's an inconsistency, log it. This fixes
current integration test failures.

eregs/regulations-site,tadhg-ohiggins/regulations-site,eregs/regulations-site,18F/regulations-site,tadhg-ohiggins/regulations-site,tadhg-ohiggins/regulations-site,18F/regulations-site,tadhg-ohiggins/regulations-site,eregs/regulations-site,18F/regulations-site,18F/regulations-site,eregs/regulations-site