BUGFIX - do not replace values in edit view

[mrname]

When editing a pre-existing advanced filter object, the javascript is overwriting pre-existing values with a blank select 2 box like so:

The fix implemented here modifies the behavior like so:

Note that I am not much of a JS dev, so not sure this is the best way to handle the issue.

[coveralls]

Coverage remained the same at 96.06% when pulling f1c1f5e on mrname:detail_view_select2_fix into c88bafc on modlinltd:develop.

[mrname]

Actually, it looks like this PR handles the issue in a better way:

#31

However, it has not made movement in about 2 years. Is there something that still needs to be done there that I could assist with?

[asfaltboy]

Thanks @mrname , would you mind testing PR #31 out and giving you feedback on it there?

[mrname]

Sounds good @asfaltboy I will go ahead and close this PR in the meantime as well.