Sketcher/B-SplineByKnot goes into a weird behavior in case of double-click

[0penBrain]

Is there an existing issue for this?

• I have searched the existing issues

Problem description

Steps to reproduce:

• Open an empty sketch
• Select "B-Spline by knot"
• Draw some knots then double-click => ⚠️ At this time B-Spline creation stops but tool is in a weird mode
• Continue clicking some points "in the void" then click somewhere where a constraint may be created (eg. an axis) => ⚠️ at this time all points previously clicked appears
• Note: previous step can be done again as much as you want
• Finally right-click to exit the tool => An error is generated and nothing created

Full version info

OS: Ubuntu 22.04.4 LTS (KDE/plasma)
Word size of FreeCAD: 64-bit
Version: 0.22.0dev.37243 (Git)
Build type: Debug
Branch: master
Hash: 0095e52466c79c2135fce860a341554f3f51156c
Python 3.10.12, Qt 5.15.3, Coin 4.0.0, Vtk 7.1.1, OCC 7.6.3
Locale: English/United States (en_US)

Subproject(s) affected?

Sketcher

Anything else?

No response

Code of Conduct

• I agree to follow this project's Code of Conduct

[AjinkyaDahale]

Interesting. For a regular B-spline (by poles), double click just creates two points, sometimes (but not always) with a coincidence constraint applied.