Dragging arrows from boxes results in slightly bent arrows

[tpwrules]

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Describe the bug
Dragging arrows from boxes creates slightly bent arrows.

To Reproduce
Steps to reproduce the behavior:

1. Go to https://app.diagrams.net/
2. Create new diagram -> blank diagram
3. Add a box to the canvas
4. Drag an arrow from the right middle connection point to an area up and to the right so that the arrow has three segments and points right
5. Observe that the final segment of the arrow is not exactly horizontal

Expected behavior
I expect all segments of the arrow to be exactly horizontal or vertical.

Screenshots

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

• draw.io version v28.1.1

Desktop (please complete the following information):

• OS: macOS 15.5
• Browser: Firefox 142.0

I tested the problem in incognito/private mode with all browser extensions switched off, write "yes" below:

• yes

Additional context
Also replicates in Chrome on Linux.