### 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)

const BlendShapeTrack *bst = static_cast<const BlendShapeTrack *>(t);
			if (bst->compressed_track >= 0) {
				_get_compressed_key_indices_in_range<1>(bst->compressed_track, from_time, to_time - from_time, p_indices);
			} else {
				_track_get_key_indices_in_range(bst->blend_shapes, from_time, to_time, p_indices, is_backward);
			}
		} break;
		case TYPE_VALUE: {
			const ValueTrack *vt = static_cast<const ValueTrack *>(t);
			_track_get_key_indices_in_range(vt->values, from_time, to_time, p_indices, is_backward);
		} break;
		case TYPE_METHOD: {
			const MethodTrack *mt = static_cast<const MethodTrack *>(t);
			_track_get_key_indices_in_range(mt->methods, from_time, to_time, p_indices, is_backward);
		} break;
		case TYPE_BEZIER: {
			const BezierTrack *bz = static_cast<const BezierTrack *>(t);
			_track_get_key_indices_in_range(bz->values, from_time, to_time, p_indices, is_backward);
		} break;
		case TYPE_AUDIO: {
			const AudioTrack *ad = static_cast<const AudioTrack *>(t);
			_track_get_key_indices_in_range(ad->values, from_time, to_time, p_indices, is_backward);
		} break;
		case TYPE_ANIMATION: {
			const AnimationTrack *an = static_cast<const AnimationTrack *>(t);
			_track_get_key_indices_in_range(an->values, from_time, to_time, p_indices, is_backward);
		} break;
	}
}
Vector<Variant> Animation::method_track_get_params(int p_track, int p_key_idx) const {