Unable to merge books

[sylvie pepos]

calibre, version 7.13.0
ERROR: Unhandled exception: <b>TypeError</b>:cannot unpack non-iterable bool object

calibre 7.13 embedded-python: True
Windows-10-10.0.22631-SP0 Windows ('64bit', 'WindowsPE')
('Windows', '10', '10.0.22631')
Python 3.11.5
Windows: ('10', '10.0.22631', 'SP0', 'Multiprocessor Free')
Interface language: None
EXE path: C:\Program Files\Calibre2\calibre.exe
Successfully initialized third party plugins: EpubCheck (0, 2, 5) && Find Duplicates (1, 10, 9) && Goodreads (1, 8, 2) && Goodreads Sync (1, 16, 8) && Kindle hi-res covers (0, 5, 1) && Kobo Metadata (1, 6, 2) && Kobo Utilities (2, 16, 13) && Quality Check (1, 13, 11)
Traceback (most recent call last):
  File "calibre\gui2\actions\edit_metadata.py", line 644, in merge_books
TypeError: cannot unpack non-iterable bool object

This happen when I merge 2 books
select the 2 books
merge into first delete others.

It started this morning right after I installed the new version.

[Todd Weast (t-weast)]

Same Issue. Started after a recent update.

Seecting two books and pressing M to merge.

calibre, version 7.13.0
ERROR: Unhandled exception: <b>TypeError</b>:cannot unpack non-iterable bool object

calibre 7.13 embedded-python: True
Windows-10-10.0.19045-SP0 Windows ('64bit', 'WindowsPE')
('Windows', '10', '10.0.19045')
Python 3.11.5
Windows: ('10', '10.0.19045', 'SP0', 'Multiprocessor Free')
Interface language: None
EXE path: C:\Program Files\Calibre2\calibre.exe
Successfully initialized third party plugins: Find Duplicates (1, 10, 9)
Traceback (most recent call last):
  File "calibre\gui2\actions\edit_metadata.py", line 644, in merge_books
TypeError: cannot unpack non-iterable bool object

[dank277 (dank277)]

Same. Adding that using the Shift-Alt-M.

alibre 7.13 embedded-python: True
Linux-6.1.21-v8+-aarch64-with-glibc2.36 Linux ('64bit', 'ELF')
('Linux', '6.1.21-v8+', '#1642 SMP PREEMPT Mon Apr 3 17:24:16 BST 2023')
Python 3.11.5
Interface language: None
EXE path: /opt/calibre/bin/calibre-debug
Successfully initialized third party plugins: Gather KFX-ZIP (from KFX Input) (2, 15, 0) && Package KFX (from KFX Input) (2, 15, 0) && Count Pages (1, 13, 6) && Extract ISBN (1, 6, 3) && Find Duplicates (1, 10, 9) && Generate Cover (2, 3, 4) && Goodreads (1, 8, 2) && ISFDB3 (1, 4, 0) && Job Spy (1, 0, 239) && KFX metadata reader (from KFX Input) (2, 15, 0) && From KFX (2, 15, 0) && KFX Input (2, 15, 0) && Library Codes (1, 0, 65)
Traceback (most recent call last):
  File "calibre/gui2/actions/edit_metadata.py", line 644, in merge_books
TypeError: cannot unpack non-iterable bool object