JAWS doesn't announce aria-selected state of gridcell in forms mode but does in virtual pc cursor mode

[Jan-Michael-Koensgen-SAP]

Summary

Brief description of the issue. Please list any specific steps.

Example:

1. Open grid in chrome
2. Start JAWS
3. Click "cell 1" or "cell 2" or "cell 3"

Expected result

The selection state of the cell gets announced in JAWS forms mode

Actual result

The selection state of each cell set by aria-selected="true" does not get announced in JAWS forms mode but does get announced in JAWS virtual pc cursor mode ... the same happens with aria-describedby property set at the cell ...

Example

CodePen

Additional Information

JAWS version and build number

2021.2111.13

Operating System and version

Browser and version:

[ling1726]

I can repro this too