add patch for https://github.com/magento/magento2/issues/18154

[davidverholen]

No description provided.

[nicobatty]

@davidverholen I don't think this patch really fix the issue. It reverse the problem basically.

I am still getting an error if I try to save a product tier price with a specific group and website id as it get filtered out in prepareOriginalDataToCompare function call.

[nicobatty]

@davidverholen

I don't see the use of the if condition in the prepareOriginalDataToCompare method: $isGlobal === $this->isWebsiteGlobal((int)$data['website_id'])

I think it can be removed.

[nicobatty]

@davidverholen

Also in the SaveHandler class, there is no isWebsiteGlobal function so it is not going to work.

[davidverholen]

@nicobatty thanks for the review, I'll try to look into it this week