This test fails: html4/bidi-alt-001 fail
Created attachment 69843 [details] bidi-alt-001.htm
I am able to reproduce this bug in Safari 15.5 on macOS 12.4 where "third line" still does not display "readable" text properly and it matches this behavior with Firefox Nightly 103. While Chrome Beta 104 displays "readable" across all three lines. Thanks!
I fixed this in r290734 (bug 237366). Works fine on trunk.