How to reproduce:
1. Create a new empty project
2. Open the Package Manager (Window → Package Manager) and navigate to "My Assets"
3. Copy any text to the clipboard, and paste it into the search bar by using the CTRL+V keyboard shortcut
4. Observe the result

Expected result: The copied text is pasted into the search bar
Actual result: The copied text is not pasted into the search bar

Reproducible in: 2023.1.0a5, 6000.0.5f1
Not reproducible in: 2021.3.39f1, 2022.3.32f1, 2023.1.0a4

Reproducible on: Windows 11
Not reproducible on: No other environments tested

Workaround: Right-click and select “Paste”

Notes:

* It is possible to paste text for a short time before assets have been fetched. However, after the assets have been fetched, pasting text is no longer possible
* It is also not possible to copy or cut text from the search bar by using CTRL+C or CTRL+X