Right click triggers `draw:drawvertex` event

[hari0603]

• I'm reporting a bug, not asking for help
• I've looked at the documentation to make sure the behaviour is documented and expected
• I'm sure this is a Leaflet Draw code issue, not an issue with my own code or the framework I'm using (Cordova, Ionic, Angular, React…)
• I've searched through the issues to make sure it's not yet reported

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How to reproduce

• Leaflet version I'm using: 1.6.0
• Leaflet Draw version I'm using: 1.0.4
• Browser (with version) I'm using: Chrome (108.0.5359.124)
• OS/Platform (with version) I'm using: Ubuntu 20.04

Steps to reproduce

• Setup polygon handler using L.Draw.Polygon
• Enable polygon handler
• Right-click on the map and confirm that new vertices are getting added.
• This issue is also present in the

What behaviour I'm expecting and which behaviour I'm seeing

• Only left-click events should add new vertices.

Minimal example reproducing the issue

This issue is present in Leaflet 1.0+ Demo as well.

Additional information

Big fan of the Leaflet community! I wanted to know if this behaviour was decided by design. If not, I would love to contribute by raising a PR to fix this.