Steps to reproduce:
Resize window to a size such that bookmarks bar has the >> button for more bookmarks. In a new window, try clicking and it doesn't do anything. After opening a new tab (total 2 tabs open), you can press the >> button and it responds.
Pressing >> should always expand the menu.
Orion, OS version; hardware type:
Version 0.99.111-beta (WebKit 613.1.12) on macOS Catalina 10.15.7
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