ES interface doesn't always reset lambda in the comma strategy

[abeham]

When switching to the comma strategy in the ES, lambda has to be at least as large as mu. However changing lambda it was prevented to set it to equal mu, as there would be no optimization taking place. However, this can cause confusion when 1/1,1 is the initial configuration, which the user then sets to 1/1,20 and is confused that he/she can't set it back to 1/1,1 again. Thus, and probably for educational reasons, it is allowed to set lambda equal to mu.

Btw, this ticket is longer than the fix to the problem

[abeham]

fixed in r1785