`260443@main` was supposed to disable font hinting for testing, that is, to set font hint metrics to `CAIRO_HINT_METRICS_OFF` and font hint style to `CAIRO_HINT_STYLE_NONE`. But by mistake, font hint metrics were set to `CAIRO_HINT_METRICS_ON` instead.
Pull request: https://github.com/WebKit/WebKit/pull/13568