https://pdf.yt/d/BeioWriXAn-DkFcO

When searching the above pdf for the phrase 'acute' the second hit hightlights the nearby word ' especi'.  Almost certainly this is the same issue that I raised in #5667 

However, when examining the generated html you can see that the highlighted text is incorrect - it contains the text ' especi' and not the search term 'acute' - it is not a positioning issue.  (see screenshot).

I am using Chrome 39, windows 8.1 x64 and pdf.js 1.0.1093

![image](https://cloud.githubusercontent.com/assets/10129039/5864096/f2d665a4-a276-11e4-91fa-af6eb36f0cde.png)

const previous = this._state.findPrevious;
    const currentPageIndex = this._linkService.page - 1;
    const numPages = this._linkService.pagesCount;
    this._highlightMatches = true;
    if (this._dirtyMatch) {
      
      this._dirtyMatch = false;
      this._selected.pageIdx = this._selected.matchIdx = -1;
      this._offset.pageIdx = currentPageIndex;
      this._offset.matchIdx = null;
      this._offset.wrapped = false;
      this._resumePageIdx = null;
      this._pageMatches.length = 0;
      this._pageMatchesLength.length = 0;
      this._matchesCountTotal = 0;
      this._updateAllPages(); 
      for (let i = 0; i < numPages; i++) {
        
        if (this._pendingFindMatches[i] === true) {
          continue;
        }
        this._pendingFindMatches[i] = true;
        this._extractTextPromises[i].then(pageIdx => {
          delete this._pendingFindMatches[pageIdx];
          this._calculateMatch(pageIdx);
        });
      }