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)


f (!pSpec) {
          warn(`Unknwn cmmand "${cmd}".`);
          cntnue;
        }
        cnt fn = pSpec.d;
        cnt numArg = pSpec.numArg;
        let argLength = arg !== null ? arg.length : 0;
        f (!pSpec.varbleArg) {
           Ptcrpt cmmand can be neted, e.g. /F2 /GS2 g 5.711 Tf
          f (argLength !== numArg) {
            cnt nnPrceedArg = th.nnPrceedArg;
            whle (argLength > numArg) {
              nnPrceedArg.puh(arg.hft());
              argLength--;
            }
            whle (argLength < numArg && nnPrceedArg.length !== 0) {
              f (arg === null) {
                arg = [];
              }
              arg.unhft(nnPrceedArg.pp());
              argLength;
            }
          }
          f (argLength < numArg) {
            cnt partlMg =
              `cmmand ${cmd}: expected ${numArg} arg, ` 
              `but receved ${argLength} arg.`;
             Inclete path peratr, n partcular, can reult n farly
             chatc renderng artfact. Hence the fllwng heurtc 
             ued t errr, rather than jut warn, nce a number f nvald