Print pause tooltip in small letters

This fixes the following bug:
1. Activate tooltips in the options.
2. Hover over the pause button, see its tooltip in small font (correct).
3. Still over the pause button, move the mouse to the screen edge.

Expected: Pause tooltip remains in small font.
Instead: Pause tooltip prints in big font.

src/game/panel/tooltip.d

@@ -71,7 +71,18 @@ struct Tooltip {
 
     static bool isAboutMapClicks(in IdSet ids) pure nothrow @safe @nogc
     {
-        return ids >= ID.forceLeft; // Contains one of these high bits.
+        return ids % ID.forceLeft == 0 // Contains no important low bit
+            && ids >= ID.forceLeft; // Contains at least one high bit.
+        /*
+         * Both sides of the && are necessary.
+         *
+         * Ruling out the low bits prevents a bug where the scrolling tooltip
+         * (unshown) for mouse at screen edge prints the pause button tooltip
+         * (shown) in big font instead of the correct small font.
+         *
+         * Requiring the map clicks prevents a bug where the skill buttons
+         * print their tooltips in big font instead of the correct small font.
+         */
     }
 
     string format()