[Kst] 1.3.1

[Brisset, Nicolas]

> I will not release 1.3.1 until Monday or Tuesday next week, 
> but please consider it to be frozen.  The only bug fix going 
> in there should be the one for #134987.  
So, no fix for 135343 in 1.3.1 ? Too bad... It looked like a small but
annoying regression.

> In terms of this 
> bug, I think that any fix will be preceeded by a complete 
> regression test for this functionality.  We have too many 
> bugs creeping in here and we need to get it "right".
Yes, looking at the code I got the impression that there are many corner
cases and risks of collateral damage so I agree it should be well tested
and carefully considered...