Excel tables with numbers or hyphen and break lines cannot be pasted into editor

Issue Summary

• When an Excel/Google Sheets table or cell contains a number/hyphen and a line break, the content of the cell cannot be pasted into the Confluence current edit.
• If the number/hyphen or the line break is removed, the table can be pasted without any issues.

Steps to Reproduce

1. Create a new Excel/Google Sheets file.
2. Add the following into a cell.

   • 1. Some
     Text
     

• • To enter a line break in Excel
    • For Windows – ALT + Enter.
    • For Mac – Control + Option + Enter.

1. Copy and paste the cell into an editor in Confluence.

Expected Results

• The content is copied into the editor as a table.

Actual Results

• Nothing happens when we paste the values in.
• The following request is seen in the Network tab, which seems to indicate that the paste worked without any issues.
  • Request URL: <SITE>.atlassian.net/gateway/api/gasv3/api/v1/batch

  • {"success":true,"validationErrors":null,"message":null,"code":0}

Workaround

1. We can work around the issue by either,
   1. Removing the dot, "." next to the number.
   2. Removing the line break.
   3. Adding another number after the line break.
2. For example,
   • Cannot be pasted

     • 1. Some
       Text
       

• • Can be pasted

    • 1 Some
      Text
      

• • Can be pasted

    • 1. Some
      2. Text
      

• • Can be pasted

    • 1. Some Text