I still have a mainnet wallet with some pre-static-remotekey channels
(though those channels are closed) that I do not want to delete yet.
follow-up https://github.com/spesmilo/electrum/pull/7636
```
E | gui.qt.exception_window.Exception_Hook | exception caught by crash reporter
Traceback (most recent call last):
File "...\electrum\electrum\gui\qt\__init__.py", line 307, in wrapper
return func(self, *args, **kwargs)
File "...\electrum\electrum\gui\qt\__init__.py", line 332, in start_new_window
wallet = self._start_wizard_to_select_or_create_wallet(path)
File "...\electrum\electrum\gui\qt\__init__.py", line 377, in _start_wizard_to_select_or_create_wallet
db = WalletDB(storage.read(), manual_upgrades=False)
File "...\electrum\electrum\wallet_db.py", line 73, in __init__
self.load_data(raw)
File "...\electrum\electrum\wallet_db.py", line 106, in load_data
self.upgrade()
File "...\electrum\electrum\util.py", line 439, in <lambda>
return lambda *args, **kw_args: do_profile(args, kw_args)
File "...\electrum\electrum\util.py", line 435, in do_profile
o = func(*args, **kw_args)
File "...\electrum\electrum\wallet_db.py", line 195, in upgrade
self._convert_version_44()
File "...\electrum\electrum\wallet_db.py", line 859, in _convert_version_44
if item['static_remotekey_enabled']:
KeyError: 'static_remotekey_enabled'
```
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