Bug#1102471: gnome-calculator 1:43.0.1-2 freezes on startup due to IMF currency rate HTTP error

[Alejandro Pomares]

Package: gnome-calculator
Version: 1:43.0.1-2
Severity: normal
Tags: upstream

Dear Maintainer,

I am experiencing a persistent freeze when launching `gnome-calculator` on
a clean Debian 12 (bookworm) system. The application window either remains
blank or does not appear at all. The following error is consistently shown
in the terminal:

---
** (gnome-calculator:XXXXX): WARNING **: currency-provider.vala:161:
Couldn't download IMF currency rate file: HTTP/2 Error: INTERNAL_ERROR

(gnome-calculator:XXXXX): libsoup-WARNING **: soup_session_dispose: runtime
check failed: (soup_connection_manager_get_num_conns (priv->conn_manager)
== 0)

(gnome-calculator:XXXXX): libsoup-WARNING **: soup_host_free: runtime check
failed: (host->conns == NULL)
---

The calculator fails to display properly after this error. Removing user
configuration and forcing `button-mode=basic` with `gsettings` does not
prevent the crash. The issue occurs consistently even with fresh user
accounts and no custom configuration.

I am using:
- Debian GNU/Linux 12 (bookworm)
- Kernel: 6.12.12+bpo-amd64
- GNOME: 43
- GPU: AMD Radeon RX 5700 XT (driver: amdgpu, running under Wayland)
- RAM: 128 GiB

Disabling network access via `firejail --net=none gnome-calculator` allows
the app to launch, which confirms the bug is related to IMF currency rate
fetching.

I believe this is a regression or unhandled network error that should be
safely caught without freezing the application.

Please let me know if any further debugging or logs are required.

Best regards,
Alejandro Pomares Padilla
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