Autocomplete disappears when quots are typed

Hi, there!
I have the such situation.
I type a word and autocomplete suggestions appears. Ok.
The autocomplete items contains the single quot (apostrophe). Pic 1.
List of autocomplete suggestions disappears when you type an apostrophe. Pic 2.
Further typing excludes the beginning of the line from autocomplete list generation. Pic 3.

How to make that the apostrophe does not break down the search string?

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Could it be that your completion source sets a validFor property that doesn’t match these quotes? (And/or uses a method like CompletionContext.matchBefore with a regexp that doesn’t match these.)

Hi, marijn!
This second thesis was true
Thank you very much!