### Tested versions

- Reproducible in: v4.2.stable.official [46dc27791]
- Not reproducible in: v4.1.3.stable

### System information

Godot v4.2.stable - Windows 10.0.22621 - Vulkan (Forward+) - dedicated AMD Radeon RX 6600 (Advanced Micro Devices, Inc.; 31.0.21023.2010) - AMD Ryzen 7 5700X 8-Core Processor (16 Threads)

### Issue description

Starting with Godot 4.2, changing a Control node's anchor offsets with an AnimationPlayer node results in the offsets "snapping" to the keyframes, as if Nearest interpolation were used. 

This only applies to the Linear Interpolation Mode; Cubic still works as expected.

![resize_interp_fail](https://github.com/godotengine/godot/assets/26508550/a10a973f-afdc-45f2-986c-594aa3cdc9dc)

I encountered this regression when upgrading my project from 4.1.3 to 4.2. Minimum reproduction project provided below.

### Steps to reproduce

- Create a Control node with a Custom anchor preset.
- Create an AnimationPlayer track for one or more of its anchor offsets, with the Continuous update mode and Linear interpolation.
- Add keyframes to track(s)
- Play animation (either in the editor or in-game)

### Minimal reproduction project (MRP)

[ControlResize.zip](https://github.com/godotengine/godot/files/13589517/ControlResize.zip)

} break;
		case TYPE_ANIMATION: {
			AnimationTrack *at = static_cast<AnimationTrack *>(t);
			ERR_FAIL_INDEX_V(p_key_idx, at->values.size(), Variant());
			return at->values[p_key_idx].value;
		} break;
	}
	ERR_FAIL_V(Variant());
}
double Animation::track_get_key_time(int p_track, int p_key_idx) const {
	ERR_FAIL_INDEX_V(p_track, tracks.size(), -1);
	Track *t = tracks[p_track];
	switch (t->type) {
		case TYPE_POSITION_3D: {
			PositionTrack *tt = static_cast<PositionTrack *>(t);
			if (tt->compressed_track >= 0) {
				Vector3i value;
				double time;
				bool fetch_compressed_success = _fetch_compressed_by_index<3>(tt->compressed_track, p_key_idx, value, time);
				ERR_FAIL_COND_V(!fetch_compressed_success, false);
				return time;
			}
			ERR_FAIL_INDEX_V(p_key_idx, tt->positions.size(), -1);
			return tt->positions[p_key_idx].time;
		} break;
		case TYPE_ROTATION_3D: {
			RotationTrack *rt = static_cast<RotationTrack *>(t);
			if (rt->compressed_track >= 0) {
				Vector3i value;
				double time;