svg-length.cpp sp_svg_number_read_d: Handle null input string (!7441) · Merge requests · Inkscape / inkscape

Fail on null input string rather than assert in g_ascii_strtod, like already done for sp_svg_number_read_f.

With a new preferences.xml, drawing a spiral tool throws four of these assertions. (From SPSpiral::set, probably due to missing attribute values for SODIPODI_EXPANSION, SODIPODI_REVOLUTION, SODIPODI_ARGUMENT, SODIPODI_T0)

svg-length.cpp sp_svg_number_read_d: Handle null input string

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