From 0d380218a65bb2e977d9def8c0b0f2ffc34668da Mon Sep 17 00:00:00 2001
From: f321x <f@f321x.com>
Date: Mon, 5 Jan 2026 16:02:14 +0100
Subject: [PATCH] bug: psbt_nostr: set CosignerWallet.pending on aio loop

Fixes:
```
Traceback (most recent call last):
  File "/home/user/code/electrum-fork/electrum/plugins/psbt_nostr/qt.py", line 149, in on_receive
    self.mark_pending_event_rcvd(event_id)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^
  File "/home/user/code/electrum-fork/electrum/plugins/psbt_nostr/psbt_nostr.py", line 254, in mark_pending_event_rcvd
    self.pending.set()
    ~~~~~~~~~~~~~~~~^^
  File "/usr/lib64/python3.14/asyncio/locks.py", line 192, in set
    fut.set_result(True)
    ~~~~~~~~~~~~~~^^^^^^
  File "/usr/lib64/python3.14/asyncio/base_events.py", line 829, in call_soon
    self._check_thread()
    ~~~~~~~~~~~~~~~~~~^^
  File "/usr/lib64/python3.14/asyncio/base_events.py", line 866, in _check_thread
    raise RuntimeError(
        "Non-thread-safe operation invoked on an event loop other "
        "than the current one")
RuntimeError: Non-thread-safe operation invoked on an event loop other than the current one
```
---
 electrum/plugins/psbt_nostr/psbt_nostr.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/electrum/plugins/psbt_nostr/psbt_nostr.py b/electrum/plugins/psbt_nostr/psbt_nostr.py
index fed2a8a01..6d45349bf 100644
--- a/electrum/plugins/psbt_nostr/psbt_nostr.py
+++ b/electrum/plugins/psbt_nostr/psbt_nostr.py
@@ -40,7 +40,8 @@ from electrum.logging import Logger
 from electrum.plugin import BasePlugin
 from electrum.transaction import PartialTransaction, tx_from_any
 from electrum.util import (
-    log_exceptions, OldTaskGroup, ca_path, trigger_callback, event_listener, json_decode, make_aiohttp_proxy_connector
+    log_exceptions, OldTaskGroup, ca_path, trigger_callback, event_listener, json_decode,
+    make_aiohttp_proxy_connector, run_sync_function_on_asyncio_thread,
 )
 from electrum.wallet import Multisig_Wallet
 
@@ -250,7 +251,7 @@ class CosignerWallet(Logger):
     def mark_pending_event_rcvd(self, event_id):
         self.logger.debug('marking event rcvd')
         self.known_events[event_id] = now()
-        self.pending.set()
+        run_sync_function_on_asyncio_thread(self.pending.set, block=False)
 
     def prepare_messages(self, tx: Union[Transaction, PartialTransaction], label: str = None) -> List[Tuple[str, dict]]:
         messages = []