Multiselect attribute is not saving with plus(+) in value

[amanuni]

Preconditions (*)

1. Magento 2.2.6
2. MariaDB 10.2.19-MariaDB - MariaDB Server
3. Linux

Steps to reproduce (*)

1. Add a multi-select attribute for product from Store->Attribute->Product->Add New Attribute
2. Add a option value with plus symbol e.g. (+300)

Expected result (*)

1. Expected option value will save with plus symbol e.g. (+300) but it saved as ( 300)

Actual result (*)

1. Its saves option 300 instead of +300

[magento-engcom-team]

Hi @amanuni. 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 (for example: 2.3-develop).
For more details, please, review the Magento Contributor Assistant documentation.

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

• yes
• no

[amanuni]

@magento-engcom-team give me 2.2.6 instance

[magento-engcom-team]

Hi @amanuni. Thank you for your request. I'm working on Magento 2.26 instance for you

[amanuni]

@magento-engcom-team give me 2.2.6 instance

[magento-engcom-team]

Hi @amanuni. Thank you for your request. I'm working on Magento 2.2.6 instance for you

[magento-engcom-team]

Hi @amanuni, here is your Magento instance.
Admin access: https://i-19506-2-2-6.instances.magento-community.engineering/admin
Login: admin Password: 123123q
Instance will be terminated in up to 3 hours.

[amanuni]

@magento-engcom-team issue is confirmed i have tested on provided on above instance and it same its not saving + symbol in value. I have tested by creating a attribute name "Test Multiselect" and added two option value one is "-100" and another is "+200" first value saved correctly and and displaying "-100" after save however 2nd value "+200" is displaying "200" after save.

[magento-engcom-team]

Hi @omaxmo. Thank you for working on this issue.
In order to make sure that issue has enough information and ready for development, please read and check the following instruction: 👇

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[omaxmo]

@magento-engcom-team give me 2.3-develop instance

[magento-engcom-team]

Hi @omaxmo. Thank you for your request. I'm working on Magento 2.3-develop instance for you

[magento-engcom-team]

Hi @omaxmo, here is your Magento instance.
Admin access: https://i-19506-2-3-develop.instances.magento-community.engineering/admin
Login: admin Password: 123123q
Instance will be terminated in up to 3 hours.

[omaxmo]

@magento-engcom-team give me 2.2.7 instance

[magento-engcom-team]

Hi @omaxmo. Thank you for your request. I'm working on Magento 2.2.7 instance for you