A way to get the character of bullet points in PowerPoint

The BulletFormat got updated, which is nice, but there is one disatvantage still:

When resetting a text of a shape completely, and the shape prior to the change, had squares as bullet points, the bullet points in the new text are set as disks.

So there are multiple ways to fix this, the last one is the optimal way that should be implemented:

• The shape should have some "default" and keep the last bulletpoints that were set for each level
• When setting bullet points, the shapes placeholder settings are used for this

Or the only right solution:
There should be a way to read the current type (square, circle, arrow, whatever) from the textRange.paragraphFormat.bulletFormat so we can save it and reapply the right type to the new text.