### 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)

TKey<Variant> k;
			k.time = p_time;
			k.transition = p_transition;
			k.value = p_key;
			ret = _insert(p_time, vt->values, k);
		} break;
		case TYPE_METHOD: {
			MethodTrack *mt = static_cast<MethodTrack *>(t);
			ERR_FAIL_COND_V(p_key.get_type() != Variant::DICTIONARY, -1);
			Dictionary d = p_key;
			ERR_FAIL_COND_V(!d.has("method") || (d["method"].get_type() != Variant::STRING_NAME && d["method"].get_type() != Variant::STRING), -1);
			ERR_FAIL_COND_V(!d.has("args") || !d["args"].is_array(), -1);
			MethodKey k;
			k.time = p_time;
			k.transition = p_transition;
			k.method = d["method"];
			k.params = d["args"];
			ret = _insert(p_time, mt->methods, k);
		} break;
		case TYPE_BEZIER: {
			BezierTrack *bt = static_cast<BezierTrack *>(t);
			Array arr = p_key;
			ERR_FAIL_COND_V(arr.size() != 5, -1);
			TKey<BezierKey> k;
			k.time = p_time;
			k.value.value = arr[0];
			k.value.in_handle.x = arr[1];
			k.value.in_handle.y = arr[2];
			k.value.out_handle.x = arr[3];
			k.value.out_handle.y = arr[4];