[Form Segment] Form group of segments lost rounded corner when loading

[ko2in]

Bug Report

If the group of segments is form and it has CSS class name loading, it lost the rounded corner.

Steps to reproduce

1. Create the form with class name ui form segments.
2. Add the form fields within each ui segment container.
3. Manipulate the form to put loading state. Or add class name loading to ui form segments.

Expected result

The segments should keep rounded corners.

Actual result

The rounded corners become square until the class name loading is removed.

Testcase

Open https://jsfiddle.net/mgfLs0e1/, and click the submit button to reproduce.

Screenshot

Version

2.7.4

[lubber-de]

Fixed by #629