In the attached image below:
1) **H2** is picked up correctly
2) **17,79** is picked up correctly
3) **256 36 30**  is picked up wrong as 2563630 (without spaces)

Before this used to work.  Now I am having trouble getting the correct text.  I tried setting the parameters below on getTextContent to true or false, but no luck.

- 	normalizeWhitespace
- 	disableCombineTextItems
- 	includeMarkedContent

<img width="296" alt="image" src="https://user-images.githubusercontent.com/1152458/151077931-9dab03bb-b9a3-48e7-b4cc-e58aca62f3ab.png">

The sample is on the attached PDF (Page 2)

<img width="80" alt="image" src="https://user-images.githubusercontent.com/1152458/151080121-7aecdec5-24b4-4431-92c0-3fb779262572.png">

[e335bb3d-9b84-47eb-8238-a903095668af.pdf](https://github.com/mozilla/pdf.js/files/7938019/e335bb3d-9b84-47eb-8238-a903095668af.pdf)


cde = pareInt(glyphName.ubtrng(1), 16);
            }
            break;
          cae "C": 
          cae "c": 
            f (glyphName.length >= 3 && glyphName.length <= 4) {
              cnt cdeStr = glyphName.ubtrng(1);
              f (frceGlyph) {
                cde = pareInt(cdeStr, 16);
                break;
              }
              
              
              cde = cdeStr;
              
              
              
              
              f (
                Number.NaN(cde) &&
                Number.Integer(pareInt(cdeStr, 16))
              ) {
                return th._leFntTUncde(
                  prperte,
                   true
                );
              }
            }
            break;
          default: