### 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)

return false;
			}
		} else {
			return false;
		}
#ifndef DISABLE_DEPRECATED
	} else if (prop_name == "loop" && p_value.operator bool()) { 
		loop_mode = Animation::LoopMode::LOOP_LINEAR;
		return true;
#endif 
	} else {
		return false;
	}
	return true;
}
bool Animation::_get(const StringName &p_name, Variant &r_ret) const {
	String prop_name = p_name;
	if (p_name == SNAME("_compression")) {
		ERR_FAIL_COND_V(!compression.enabled, false);
		Dictionary comp;
		comp["fps"] = compression.fps;
		Array bounds;
		bounds.resize(compression.bounds.size());
		for (uint32_t i = 0; i < compression.bounds.size(); i++) {
			bounds[i] = compression.bounds[i];
		}
		comp["bounds"] = bounds;
		Array pages;
		pages.resize(compression.pages.size());
		for (uint32_t i = 0; i < compression.pages.size(); i++) {