Relationship lines & indentation disappear in Obsidian 0.9.15

Steps to reproduce

I used Milo's theme with a bit of customized CSS. But the same thing also happens in default themes

/* bullet point relationship line*/

.cm-hmd-list-indent .cm-tab, ul ul { position: relative; }
.cm-hmd-list-indent .cm-tab::before, ul ul::before {
content:’’;
border-left: 1px solid rgba(0, 122, 255, 0.25);
position: absolute;
}
.cm-hmd-list-indent .cm-tab::before { left: 0; top: -5px; bottom: -4px;
}
ul ul::before { left: -11px; top: 0; bottom: 0;
}

Expected result

Previously every time I typed tab + -, there'd be a relationship line and the "-" turns into a point

Actual result

Environment

  • Operating system: MacOS Bigsur
  • Obsidian version: 0.9.15

Additional information

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Please, triage these css questions in the help section first before posting a bug. We change things sometimes and breaking user’s custom css is most often not a bug.

Got it, thank you very much