If bake interval is a multiple of the curve length, the curve would return NaN for some offset values (when `frac == 0.0`, it matches the start and end of the curve segment so `fmod == 0.0`, `frac` becomes NaN)
```
# Godot 3.1.1
var c = Curve3D.new()
c.add_point(Vector3())
c.add_point(Vector3(0.5,0,0))
c.add_point(Vector3(1,0,0))
c.bake_interval = 0.5
c.interpolate_baked(0.5) == Vector3(NAN, NAN, NAN)
```
Fix freetype build issue for javascript platform.
When disabling optimizations (SMID) in specific freetype, source files,
we need to make sure to copy all other CPPFLAGS, not just override them.
This change fixes a few outstanding issues and greatly improves the usability
of the GridMap editor through the following changes:
- Copied mesh now gets displayed during pasting (also renamed the related
identifiers accordingly)
- Duplication/paste indicator now gets rotated around the correct pivot point
(duplication worked properly before, but the indicator was shown misplaced
when rotated)
- Selected mesh library item cursor is no longer shown during selection and
duplication/pasting
- Back rotate X/Y/Z is now working during duplication/pasting
- Added true cut operation thanks to now having a proper clipboard (clear
operation got remapped to the DEL key)
- Got rid of some weird workarounds in the duplication code
- Fill and clear operations now correctly make the selection marker inactive
as this was broken partly due to the workarounds mentioned above
(duplication continues to keep the selection marker active to allow
subsequent duplications)
- Clear current selection on RMB, but treat selection as an action so previous
selection can be restored on undo
- Separated selection and paste indicator data as it's prone to error and
confusion and it's anyway needed now that selection is treated as an action
- Added support for cancelling paste, selection, and even unselect the
currently selected mesh library item with the ESC key (previously there
wasn't a way to unselect)
- Changed the key binding of fill/clear/duplicate operations to use Ctrl as a
modifier
- Changed erase to use RMB instead of Shift+RMB (free look is available
through Shift+F anyway, so no need to occupy RMB for it during gridmap
editing)
- Removed unused area, external connector, and configure menu items (there's
also the non-functional clip mode menu items, but I'm not sure whether there
are any plans with that, I suppose it's meant to be an editor aid)
- Renamed INPUT_COPY to INPUT_PICK to better reflect its purpose
- Added support for using Shift+Q and Shift+E to select multiple floors/planes
without actually changing the current floor/plane as it happens when using
e.g. the mouse wheel
Fixes#25373 and #15883