Cannot import table with columns which have the similar headers

[oleua]

Steps to reproduce

1. Have a table
2. Have a prepared CSV file with columns
3. Have some columns which have similar names
4. In the preview window observe that the field is empty and not possible to select another one.

Expected behavior

Allow to have the columns with headers with the same name.

Actual behavior

Currently, it is not possible to have the columns with the similar names.

Tables app version

No response

Browser

No response

Client operating system

No response

Operating system

No response

Web server

None

PHP engine version

None

Database

None

Additional info

No response