'Set as Default Style' is overridden by adhoc style changes

Preflight Checklist

• I agree to follow the Code of Conduct that this project adheres to.
• I have searched the issue tracker for a feature request that matches the one I want to file, without success.

Describe the bug After setting a default style for connectors, adhoc changes to any connector’s style will also change the default style.

To my knowledge this affects both lines and shapes, and all style properties.

To Reproduce Steps to reproduce the behavior:

1. Create a diagram with two shapes
2. Connect the shapes
3. Change the connector’s style (eg. set colour to blue)
4. Click Set as Default Style
5. Add another connector to the shapes. The default style (blue) is used.
6. Change the style of one of the connectors (eg. change colour to red)
7. Add another connector to the shapes.
8. See bug - The default style was not used (the new line is red when it should be blue)

Expected behavior When setting a default style for a line/shape I expect it to preserve that default style until I click Set as Default Style again to update the default.

Screenshots

draw.io version (In the Help->About menu of the draw.io editor):

• 14.9.2

Desktop (please complete the following information):

• OS: macOS
• Browser: Firefox
• Version: 91.0b8

[dsample]

This is not a bug, it’s the intended behaviour.

Could you explain how it’s intended behaviour?

The ‘set as default style’ button’s behaviour is overridden by a simple selection of colour or line style. I can’t see how that’s intended.

[alderg]

This will be fixed in the next release.