Strange behavior of PDF form texts in Okular that I built

[Anıl Özbek]

I have one sample PDF file [1]. I don't know what all the features of
the file are, but I think it dynamically takes the date (or just date
format) from the system.

When I edit this PDF file (fill form) with Okular which comes from
system repositories everything is fine. But when I edit this PDF file
(fill form) with Okular which I buit myself as described at
https://community.kde.org/Get_Involved/development I get date
different format (Mon Aug 20 2018 13:15:02 GMT+0300) instead of
original format (11:59:10, 12/03/2018) on the document. And then the
PDF form is no longer edited for this or other reasons.

[1] https://www.dropbox.com/s/202x1dijd67hdr2/Approved2.pdf?dl=0
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Anıl Özbek