qpdfview not works when overprintpreview is true.

[Fabio]

When I Selected the option "Visualização de superimposição", the program qpdfview crashed.
This option is on menu 'Edit', 'Settings', 'Graphics', 'PDF, 'Overprint Preview'.

I try open, this program qpdview not working.
I verify what the option' Overprint Preview' is on file 'pdf-plugin.conf', then, when I selected option described above,
on the file, the option 'overprintPreview' changed of 'false' for 'true'.

Then, when I try open the program qpdfview, the program not working.

For the program to back working, I edit the file 'pdf-plugin.conf', and into of file, at line this option:
overprintPreview=true
I have changed this line for: 'overprintpreview=true'.
After I do this change this program works correctly.

linux fedora 34.
qpdfview 0.4.18
qpdfview é um leitor de documentos com abas usando QT.
Esta versão inclui:
Suporte à PDF usando a infraestrutura Poppler 21.01.0
Suporte à PS usando a infraestrutura libspectre 0.2.9
Suporte à DjVu usando a infraestrutura DjVuLibre 3.5.27
Suporte à impressão usando a infraestrutura CUPS 2.3.3op1

[Fabio (zuibaf)]

This option 'Visualização de superposição", when checkbox is 'true' qdpfview crashed and it not works more.