Bug documenting

src/metatile_behavior.c

@@ -968,6 +968,10 @@ bool8 MetatileBehavior_IsDiveable(u8 metatileBehavior)
 
 bool8 MetatileBehavior_IsUnableToEmerge(u8 metatileBehavior)
 {
+    //BUG: The player is unintentionally able to emerge on water doors.
+    //Also the narrower underwater door in the underwater tileset has the wrong metatile behavior. This causes the dive glitch.
+    //To fix that add ||metatileBehavior == MB_WATER_DOOR to the if statement below and 
+    //change the metatile behavior of the narrower water door with porymaps tilset editor.
     if (metatileBehavior == MB_NO_SURFACING
      || metatileBehavior == MB_SEAWEED_NO_SURFACING)
         return TRUE;