I'm getting this on single MDE opening:
AttributeError: 'MultipleWidget' object has no attribute 'currentIndexChanged'
Spoiler:
Traceback (most recent call last):
File "calibre\gui2\actions\edit_metadata.py", line 430, in edit_metadata
File "calibre\gui2\actions\edit_metadata.py", line 453, in edit_metadata_for
File "calibre\gui2\actions\edit_metadata.py", line 483, in do_edit_metadata
File "calibre\gui2\metadata\single.py", line 1349, in edit_metadata
File "calibre\gui2\metadata\single.py", line 107, in __init__
File "calibre\gui2\metadata\single.py", line 167, in setupUi
File "calibre\gui2\metadata\single.py", line 375, in create_custom_metadata_widgets
File "calibre\gui2\custom_column_widgets.py", line 833, in connect_data_changed
AttributeError: 'MultipleWidget' object has no attribute 'currentIndexChanged'
Bulk MDE runs fine