I can reproduce this on my Thinkpad when the BIOS is set to "Thinkpad NumLock - Independent" (which is the default setting).
I can reproduce this with gtk3-demo and policykit authentication dialogs. It needs to be fixed in gtk+3.0.
I suggest we turn off the numlock warning altogether in gtk+3.0.
I can reproduce this on my Thinkpad when the BIOS is set to "Thinkpad NumLock - Independent" (which is the default setting).
I can reproduce this with gtk3-demo and policykit authentication dialogs. It needs to be fixed in gtk+3.0.
I suggest we turn off the numlock warning altogether in gtk+3.0.