Can't Change Java Model's Code 1.17.1

So I'm attempting to edit a java model's code so I can re-scale it without making a new model. I'm using this code...

@Override
    public void renderToBuffer(PoseStack poseStack, VertexConsumer buffer, int packedLight, int packedOverlay, float red, float green, float blue, float alpha) {
            poseStack.pushPose();
            poseStack.translate(0f, 1.5f - 0.5 * 1.5f, 0f);
            poseStack.scale(4.0f, 4.0f, 4.0);
        Head.render(poseStack, buffer, packedLight, packedOverlay);
        Tail.render(poseStack, buffer, packedLight, packedOverlay);
        Arm1.render(poseStack, buffer, packedLight, packedOverlay);
        Leg1.render(poseStack, buffer, packedLight, packedOverlay);
        Leg2.render(poseStack, buffer, packedLight, packedOverlay);
        Arm2.render(poseStack, buffer, packedLight, packedOverlay);
        bb_main.render(poseStack, buffer, packedLight, packedOverlay);
        poseStack.popPose();

This code should work, but it keeps reverting to the model's unedited code once I exit it...

@Override
    public void renderToBuffer(PoseStack poseStack, VertexConsumer buffer, int packedLight, int packedOverlay, float red, float green, float blue,
            float alpha) {
        Head.render(poseStack, buffer, packedLight, packedOverlay);
        Tail.render(poseStack, buffer, packedLight, packedOverlay);
        Arm1.render(poseStack, buffer, packedLight, packedOverlay);
        Leg1.render(poseStack, buffer, packedLight, packedOverlay);
        Leg2.render(poseStack, buffer, packedLight, packedOverlay);
        Arm2.render(poseStack, buffer, packedLight, packedOverlay);
        bb_main.render(poseStack, buffer, packedLight, packedOverlay);

even after I use Ctrl+S to save the code (I get a "code saved" notification as well).

Any tips?