Unable to import the Robot XML result file if the <if> tag does not have the <branch> tag

Description

Unable to import the Robot XML result file if the <if> tag does not have the <branch> tag

How to reproduce

1. While Importing the Robot XML results, if the <if> tag does not have the <branch> tag, getting an error.

Actual result/Attachments

Facing an error that file format is not supported. 

Expected result

Results should be imported even <if> tag does not have the <branch> tag