Sorry about that Linards. If I recall correctly you can overide that by selecting "This is not my bug" or "No. Report a new bug" or something similar. I might be mistaken though.
Anyway, I think this bug might be the same as https://bugs.freedesktop.org/show_bug.cgi?id=57067 which is fixed upstream in poppler 0.21.2 (0.22 Beta 2), as per:
core: CairoOutputDev: Fix crash in CairoImageOutputDev with setSoftMaskFromImageMask (Bug #57067)
Sorry about that Linards. If I recall correctly you can overide that by selecting "This is not my bug" or "No. Report a new bug" or something similar. I might be mistaken though.
Anyway, I think this bug might be the same as https:/ /bugs.freedeskt op.org/ show_bug. cgi?id= 57067 which is fixed upstream in poppler 0.21.2 (0.22 Beta 2), as per:
core: ImageMask (Bug #57067)
CairoOutputDev: Fix crash in CairoImageOutputDev with setSoftMaskFrom