### Godot version

v4.0.3.stable.arch_linux

### System information

Arch linux  - OpenGL API 4.2 (Core Profile) Mesa 21.3.9 Amber - Compatibility - Using Device: Intel Open Source Technology Center - Mesa DRI Intel(R) HD Graphics 2500 (IVB GT1)

### Issue description

I wrote a simple colorize shader:
```
uniform sampler2D color_map;
void fragment()
{
	vec2 uv = COLOR.rg;
	COLOR.rgb = texture(color_map, uv).rgb;
}
```
![20230614_21h26m15s_grim](https://github.com/godotengine/godot/assets/68549456/636c00f8-09e3-4be4-9784-787a3c35ae63)

But when I change the uniform parameter in the editor, it turned into this
![20230614_21h07m45s_grim](https://github.com/godotengine/godot/assets/68549456/0ac2430d-33f5-4c4a-8cd0-bd2f76b575cf)

However, this issue does not appear on Vulkan renderer (Foward+ and Mobile) 

### Steps to reproduce

Change value in the gradient in the shader parameter.

### Minimal reproduction project

[shader-bug.zip](https://github.com/godotengine/godot/files/11746761/shader-bug.zip)

RenderTarget *rt = render_target_owner.get_or_null(p_render_target);
	ERR_FAIL_COND_V(!rt, RID());
	return rt->overridden.depth;
}
RID TextureStorage::render_target_get_override_velocity(RID p_render_target) const {
	RenderTarget *rt = render_target_owner.get_or_null(p_render_target);
	ERR_FAIL_COND_V(!rt, RID());
	return rt->overridden.velocity;
}
RID TextureStorage::render_target_get_texture(RID p_render_target) {
	RenderTarget *rt = render_target_owner.get_or_null(p_render_target);
	ERR_FAIL_COND_V(!rt, RID());
	if (rt->overridden.color.is_valid()) {
		return rt->overridden.color;
	}
	return rt->texture;
}
void TextureStorage::render_target_set_transparent(RID p_render_target, bool p_transparent) {
	RenderTarget *rt = render_target_owner.get_or_null(p_render_target);
	ERR_FAIL_COND(!rt);
	rt->is_transparent = p_transparent;
	if (rt->overridden.color.is_null()) {
		_clear_render_target(rt);
		_update_render_target(rt);
	}
}
bool TextureStorage::render_target_get_transparent(RID p_render_target) const {