Why guides for drawing a polygon are not tenative

[AnJ-K]

While applying some colors to the features I realized that the points that appear when drawing a polygon are not "tentative". As I understand it - they should be.

From the documentation:

Tentative Features
While creating a new feature in any of the draw modes, portion of a feature which has not been "committed" yet can hold its own props. For example, in drawLineString mode, the tentative feature is the last line segment moving under the mouse. For polygons and ellipses, this would be the whole feature during drawing. A tentative feature can be identified by checking if properties.guideType === 'tentative'.

While in the source code:

So they are being set with:

properties: {
    guideType: 'editHandle',
    editHandleType: 'existing',
    featureIndex: -1,
    positionIndexes: [index]
},

Where as other parts of the not-commited shape are set like:

properties: {
    guideType: 'tentative'
},

Why is that?