Automatic Wildcard setting is being ignored for email fields

The setting to prevent an automatic wildcard should (importantly) prevent a wildcard being prepended to search strings. It is when wildcards are added to the start of a string that they have a big performance effect (at the end is minor).

Unfortunately this setting is being ignored for emails - leading to slow searches on large DBS

I also discovered that email has custom handling that appears to be intended to allow a search like "garfield@foodies.com" - ie with the quotes to be the string for an exact match. I don't think it works from my assessment - but it it is desirable it could potentially be used more widely as a pattern