AttributeError: 'NoneType' object has no attribute 'strip'

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Crash Report

This crash report was reported through the automatic crash reporting system 🤖

Traceback

Traceback (most recent call last):
  File "electrum/gui/qt/invoice_list.py", line 188, in <lambda>
  File "electrum/gui/qt/send_tab.py", line 585, in do_edit_invoice
  File "electrum/gui/qt/send_tab.py", line 234, in set_payment_identifier
  File "electrum/gui/qt/paytoedit.py", line 214, in try_payment_identifier
AttributeError: 'NoneType' object has no attribute 'strip'

AttributeError: 'NoneType' object has no attribute 'strip'

Reporter

This issue was reported by 2 user(s):

Electrum Version	Python Version	Operating System	Wallet Type	Locale	Stack
4.5.4	3.10.11 (v3.10.11:7d4cc5aa85, Apr 4 2023, 19:05:19) [Clang 13.0.0 (clang-1300.0.29.30)]	macOS-10.14.5-x86_64-i386-64bit	standard	?	ℹ
4.5.5	3.10.11 (v3.10.11:7d4cc5aa85, Apr 4 2023, 19:05:19) [Clang 13.0.0 (clang-1300.0.29.30)]	macOS-10.14.6-x86_64-i386-64bit	standard	?	ℹ

Additional Information

The reporting user(s) did not provide additional information.