Blanks in text imported as kommas from pdf file

[Wolfgang Macher]

I imported 2 pdf files (say, the figure files "drawing1.pdf" and "drawing2.pdf")) into Inkscape to put them together in one figure. Then I exported the result into another single pdf file (say, "drawing.pdf"). This went well.
But when I import "drawing.pdf" again into Inkscape (to use it as part of another figure), it imports the blanks which appear in texts, as kommas. However, this problem does not happen if I open "drawing.pdf" with Adobe Akrobat.

[su_v (suv-lp)]

Please provide information about your OS/platform and Inkscape version (see Inkscape menu 'Help > About Inkscape'), and attach sample files which expose the reported problem (the 2 original PDFs [*] as well as the third exported PDF file) to allow further investigation.

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[*] If these two PDFs have been created based on 2 Inkscape SVG files, please attach the SVG files as well.

[Wolfgang Macher (wo-macher)]

The OS/platform is Windows 7, and the used Inkcsape version is 0.48.4, r9939. Please find the mentioned files "drawing1.pdf", "drawing 2.pdf" and "drawing.pdf" attached in a zip-file.

[jazzynico (jazzynico)]

Confirmed on Windows XP, Inkscape 0.48.4 (cairo 1.11.2).
Not reproduced with trunk revision 12473 (cairo 1.12.14, but it leads to some regressions...)

[Beluga (buovjaga)]

Repro with internal, but not with P/C.

Arch Linux 64-bit, KDE Plasma 5
Inkscape 0.92+devel 15099 (GTK3)