alignment guides dont disappear for rectangle knots

#### What happened?
- Draw a rectangle and a path as shown above
- Switch to the Node tool
- After moving the rectangle's handles, the last alignment guides are stuck if they pop up
#### What should have happened?
- Alignment guides disappear earlier
#### Version info
- master, windows 10
- Inkscape 1.2-dev (ec67598815, 2021-07-25) Linux Mint 20
issue