SourceSetViewHelperTrait encodes image URI twice

[luzat]

When using images containing umlauts (e.g. zubehör.jpg) with v:media.image and srcset the src is set correctly, but in srcset the file name is double-encoded, that is ö => %C3%B6 => %25C3%25B6. It seems that this happens because of this line in SourceSetViewHelperTrait.php:

$srcsetVariantSrc = static::preprocessSourceUri(GeneralUtility::rawUrlEncodeFP($srcsetVariantSrc), $this->arguments);

static::preprocessSourceUri encodes the string as does GeneralUtility::rawUrlEncodeFP. Just changing the line to

$srcsetVariantSrc = static::preprocessSourceUri($srcsetVariantSrc, $this->arguments);

gets rid of a deprecated call and outputs both src and srcset correctly with %C3%B6.

[NamelessCoder]

Removed in 9af62c4

[luzat]

GeneralUtility::rawUrlEncodeFP is removed, but the encoding is still superfluous (and breaks image references where double encoding breaks the URI).