"AND" and "OR" in tag filter

[hopalongrock]

Somehow the 'and' and 'or' not working well in tag filter.
I have there files, the Track numbers and albums are the following:
file1: track is empty, album is not empty
file2: track is not empty, album is empty
file3: track is not empty, album is not empty

If filter is
%R = <empty> and
%L != <empty> or
%R != <empty> and
%L = <empty>
then the grid contains only file2, file1 is missing

If I delete row 3 and 4, the filter
%R = <empty> and
%L != <empty> or
brings correctly
file1
It's funny that I can't delete the closing "or".

[jtclipper]

yes that is an issue with 'nested' and/or because there are no parenthesis feature like in the library. Will see what can be done for that.

[hopalongrock]

yes that is an issue with 'nested' and/or because there are no parenthesis feature like in the library. Will see what can be done for that.

Thanks.
(Although in this case specially parenthesis isn't required, only TGF should follow the precedence rule.)