List item pruning while filtering is wrong

[luniki]

The current pruning mechanism does not work as intended. The variable "change" replaces every instance

The regexp for example occasionally replaces every instance of lastval in the whole search string to determine the change.

I replaced this with a much simpler but correct solution w/o using regexp at all. Have fun!

[jblas]

@luniki

Thanks for the patch. I ran across that logic a few months back and thought the logic looked a bit over-complicated and confusing. Your patch makes things much clearer.

Just an FYI, the String.replace() method will not do a global string replace unless you pass a RegExp object built with a 'g' option, or if a string is passed, as in this case, a 3rd arg "g" is passed to replace().