TYPO3 Core

Found a way to reproduce wrong tree height:
1. reload backend
2. show some module with page tree, eg. "page"
3. select "filelist" module which substitutes the tree with a different one
4. open chrome inspector - integrated at the bottom of the window
5. go back to page module -> wrong height
6. close chrome inspector again -> correct height again

The issue is that the resize event of the window is triggered when the console gets toggled. In the file list module, the page tree is invisible and thus the correct height cannot be determined anymore, leading to that somehow random value of 105px.

I managed to reproduce it in the following way:
1. Go to page module
2. go to extension manager module
3. resize width of the window
4. resize width of the window back to the previoud size
5. go to the list module