Leaving class attribute empty in <a> tag breaks the app

[anmol-ratn]

Describe the bug

Leaving class="" in <a> tag breaks the app. The behaviour is weird because if I use <a> tag alone then there is no problem but if there is some other html present then it is breaking.

Reproduction

REPL Link

Logs

No response

System Info

Not needed

Severity

annoyance