SVGHMI: finally found why HMI:Input wasnt't initializing properly: vsprintf takes a list. Also, removed intermediate variable last_val, since edit_value() works on strings anyhow, and in case of formated floats, it is better to workl on already formated value.

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<?xml version="1.0" encoding="UTF-8"?>

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<BaseParams Name="HMIFrame" IEC_Channel="0"/>