UI freezes when trying to save

[tlpss]

Describe the bug
Rerun UI freezes without succesfully saving when I try to save to a file.

To Reproduce
Steps to reproduce the behavior:

1. run python -m rerun
2. log some data to rerun
3. try to save using the UI

Expected behavior
Expect Rerun UI to save a datafile and then continue working.

Screenshots

Backtrace

$ python -m rerun
2023-03-02T14:22:25.684096Z  INFO winit::platform_impl::platform::x11::window: Guessed window scale factor: 1    

(python:940210): GLib-GObject-WARNING **: 15:26:17.681: cannot register existing type 'GVfs'

(python:940210): GLib-GObject-WARNING **: 15:26:17.682: cannot add private field to invalid (non-instantiatable) type '<invalid>'

(python:940210): GLib-CRITICAL **: 15:26:17.682: g_once_init_leave: assertion 'result != 0' failed

(python:940210): GLib-GObject-CRITICAL **: 15:26:17.682: g_type_register_dynamic: assertion 'parent_type > 0' failed

(python:940210): GLib-GObject-WARNING **: 15:26:17.682: cannot register existing type 'GVolumeMonitor'

(python:940210): GLib-CRITICAL **: 15:26:17.682: g_once_init_leave: assertion 'result != 0' failed

(python:940210): GLib-GObject-CRITICAL **: 15:26:17.682: g_type_register_dynamic: assertion 'parent_type > 0' failed

(python:940210): GLib-GIO-WARNING **: 15:26:17.682: Tried to implement non-registered extension point gio-volume-monitor

(python:940210): GLib-GObject-WARNING **: 15:26:17.682: cannot register existing type 'GLoadableIcon'

(python:940210): GLib-GObject-WARNING **: 15:26:17.682: cannot register existing type 'GIcon'

(python:940210): GLib-GObject-CRITICAL **: 15:26:17.682: g_type_interface_add_prerequisite: assertion 'G_TYPE_IS_INTERFACE (interface_type)' failed

(python:940210): GLib-CRITICAL **: 15:26:17.682: g_once_init_leave: assertion 'result != 0' failed

(python:940210): GLib-CRITICAL **: 15:26:17.682: g_once_init_leave: assertion 'result != 0' failed

Desktop (please complete the following information):

• OS: Ubuntu 20.04 Desktop

Additional information
rerun version: 0.2.0+df920dc.1. Installed precompiled wheel from release pages since a new wheel has not been uploaded to PyPI yet afaik.

[teh-cmc]

(Dupe of #1315 & #1399, will very likely be fixed by #1402)

[emilk]

Closed as duplicate of #1315