Fixes some geocoder failures

[techieshark]

See detailed implementation comment in 4634862f867cbe469c6c9d4df6e4b2525e6d2c7c.

Should fix #323.

Test:

• search for 'primary' school
• type in the address given in #323 to the address field
• hit TAB to jump to the search button and click it

Expected result: looks like this

Test 2: same as above, but start typing the address and use the autocompleter.

[Lilith-Palmer]

Have tested this address, and several others in regional areas. Looks good @techieshark

[techieshark]

Super, thanks @Lilith-Palmer!