pause mouse any: wrong key for MB1

[Petr M. <mi...@ph...>]

I've noticed that
 	plot x
 	pause mouse any
 	show var

does not work correctly if you click MB1; it produces
         MOUSE_KEY = 1063
         MOUSE_CHAR = "'"
instead of
         MOUSE_BUTTON = 1
         MOUSE_KEY = 1
         MOUSE_CHAR = "\001"

It works fine for gnuplot 4.5.1 but is wrong in the latests releases including 
cvs, using all x11, wxt and qt terminals.

What's going wrong?

---
Petr Mikulik