ZSS doesn't apply searching result when the filter is applied

Steps to reproduce

1. enter some data to filter, e.g. a, b, c,d
2. apply the filter by selecting 'a' only
3. open filter again and search 'b'

Expected result

'b' is selected
Each time we search in the filter in Excel 2011, it always filters values by search results in despite of checkbox status.

Actual result

'b' is not selected.