Reverse linebreeding does a progeny listing to find out which
descendants are linebred to this particular dog
For top producers this can be a huge list of dogs to work with
(well over 100.000). So there is a limit to this check, just to keep the
responce time within the acceptible
Too many results, doglist stoped at 50.000.
Showing those within 50.000
The resultset was too large. Actual result was 4122, only showing 500