Update the reset method of FontProvider.

Create a BasicFontProvider instance if html2pdf's processor context is reset.

DEVSIX-2050

Author: pavel-alay

src/main/java/com/itextpdf/html2pdf/attach/ProcessorContext.java

@@ -60,6 +60,7 @@ This file is part of the iText (R) project.
 import com.itextpdf.layout.font.FontSet;
 import com.itextpdf.layout.font.Range;
 import com.itextpdf.styledxmlparser.css.media.MediaDeviceDescription;
+import com.itextpdf.styledxmlparser.resolver.font.BasicFontProvider;
 import com.itextpdf.styledxmlparser.resolver.resource.ResourceResolver;
 
 /**
@@ -414,7 +415,7 @@ public void reset() {
         this.linkContext = new LinkContext();
         this.formFieldNameResolver.reset();
         //Reset font provider. PdfFonts shall be reseted.
-        this.fontProvider = new FontProvider(this.fontProvider.getFontSet());
+        this.fontProvider = new BasicFontProvider(this.fontProvider.getFontSet(), this.fontProvider.getDefaultFontFamily());
         this.tempFonts = null;
         this.outlineHandler.reset();
         this.processingInlineSvg = false;