The given parameters return an invalid shape. This fails with occt7.4 but doesn't with occt7.3. If the angle is 45 degree the cone is self-intersecting as Hole.Depth > Hole.Diameter/2. Changing the Hole.TaperedAngle to 60 degree solves this issue.
The add property dialog (introduced by the LinkMerge) previously
showed "Document" which is confusing. The edit box is there
to provide an explanation on the new property, that is,
"Documentation".
Also improve the tooltips. Also change "Append" to "Prefix"
in the checkbox as it's more clear that the `Group` is added
at the beginning to form the full name of the property.