Fix selected text format

[bercut497]

Description (required)

if select element does not have title attribute
selectedTextFormat option will never be restored.

Issues

fix issue #22

[truckingsim]

Please don't commit compiled files. Can you resubmit this without the compiled files?

[bercut497]

done

[truckingsim]

@bercut497 so I added a select that does what you posted to our example page that looks like your select in #112 that commit is: 7f28ef0.

You can run that example by pulling the latest master, cd into the example directory, run npm install and then npm start. That html will be served at localhost:8080.
It will be the last select on the page titled Add option after init Ajax-Bootstrap-Select.

I ran your code on that example and it doesn't seem to fix it. I'm still seeing emptyTitle even though its setup like you example in #112. Any idea why? Based off of what you said, this PR should fix it, but not seeing it fixed.

[bercut497]

my bad.
i test not all.
it happen when flag preserveSelected is true and option add after init
search string === '' and cache[''] === []
may be it can help : try to update cache for queryString key on refresh. (get new option array from $element and put into cache ) need test. you can get some regression.

[bercut497]

i will amend this mistake in commit.

[truckingsim]

@bercut497 just updated the example script one more time to match the conditions correctly and this does indeed seem to fix the problem.

[truckingsim]

Did a quick change locally and then merged and squashed this locally. It didn't get picked up by github, but it is merged.

[truckingsim]

@bercut497 merge commit: e5f075f