"Open" popup outside the window and screen

[Aleksanaa]

Describe the bug "Open" list view popups outside of screen.

And at the same time a warning in terminal says

(NeovimGtk:676310): Gtk-WARNING **: 17:37:28.272: Allocating size to GtkPopover 0x55d4e60b86a0 without calling gtk_widget_measure(). How does the code know the size to allocate?

Technical information (please complete the following information):

• OS: Linux NixOS unstable
• Neovim version: v0.8.3
• Neovim-Gtk build version: 5d4fdb232301314e87df94681de648cc658baff9