Product save with onthefly index ignores website assignments

[mvenghaus]

Preconditions

1. Magento 2.2.4
2. PHP 7.1

Steps to reproduce

1. create multiple stores
2. enable "onthefly" index mode & flat tables
3. remove all website assignments from a product
4. save the product

Expected result

1. product should not show in any flat table

Actual result

1. product is found in all flat tables

[magento-engcom-team]

Hi @mvenghaus. Thank you for your report.
To help us process this issue please make sure that you provided the following information:

• Summary of the issue
• Information on your environment
• Steps to reproduce
• Expected and actual results

Please make sure that the issue is reproducible on the vanilla Magento instance following Steps to reproduce. To deploy vanilla Magento instance on our environment, please, add a comment to the issue:

@magento-engcom-team give me {$VERSION} instance

where {$VERSION} is version tags (starting from 2.2.0+) or develop branches (2.2-develop +).
For more details, please, review the Magento Contributor Assistant documentation.

@mvenghaus do you confirm that you was able to reproduce the issue on vanilla Magento instance following steps to reproduce?

• yes
• no

@mvenghaus, thank you for your report.
We've acknowledged the issue and added to our backlog.

[m2-assistant]

Hi @idziakjakub. Thank you for working on this issue.
Looks like this issue is already verified and confirmed. But if you want to validate it one more time, please, go though the following instruction:

• 1. Add/Edit Component: XXXXX label(s) to the ticket, indicating the components it may be related to.

• 2. Verify that the issue is reproducible on 2.3-develop branch

  Details

  - Add the comment @magento give me 2.3-develop instance to deploy test instance on Magento infrastructure.
  - If the issue is reproducible on 2.3-develop branch, please, add the label Reproduced on 2.3.x.
  - If the issue is not reproducible, add your comment that issue is not reproducible and close the issue and stop verification process here!

• 3. If the issue is not relevant or is not reproducible any more, feel free to close it.

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