Closing - no test case nor steps to reproduce available.
Please reopen the report if the error happens again with current Inkscape 0.91 - ideally, attach the affected SVG file (possibly there's an earlier version available too) and provide the list of steps which resulted in the unexpected purging of a filter definition that apparently was still referenced in the file.
Closing - no test case nor steps to reproduce available.
Please reopen the report if the error happens again with current Inkscape 0.91 - ideally, attach the affected SVG file (possibly there's an earlier version available too) and provide the list of steps which resulted in the unexpected purging of a filter definition that apparently was still referenced in the file.