message: Fix a regression bug which broke box drawing characters
diff: @@ -166,7 +166,7 @@ abstract class FontAtlasPageBase<CG extends CachedGlyph> {
  }
  let widthPx = this._metrics.widthPx;
  - let widthInCells = 0;
  + let widthInCells = 1;
  if (isBoxCharacter(codePoint)) {
  drawBoxCharacter(this._pageCtx, codePoint, xPixels, yPixels, this._metrics.widthPx, this._metrics.heightPx);
  } else {
  