WD: repeat finder special parameters doesn't work as it suppose to work

1. Find repeats in the attaches sequence using Dialog and default parameters (BUT uncheck maximum distance).
2. Find repeats with the same parameters using WD (BUT set maximum distance to "Any")

Expected state: the same repeats are found with Dialog and with WD

Improvement: add "Any" value to minimum distance parameter which must work as if minimum distance parameter is switched off.