But when clicking on an exact match with different source (below "wds"), the matrch is is added at the cursor position.
Somehow this does not fit. Consistent would be
Or is there a pattern that I am unable to distinguish?
In most cases the different source is due to a period or anything else, very minor. I do not really see the point why the existing segment content is not being replaced.
Yes, it should be replaced with the Exact match from the TM tab, just like it is replaced via the clicking at it in the Matchboard. To be corrected in the next build. Thanks!