Interestingly when I paste from a simple html doc like:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<title></title>
</head>
<body>
<p>graph one</p>
<br>
<p>graph two</p>
<br>
<p>graph three</p>
<br>
<ul>
<li>one
<li>two
<li>three
</ul>
</body>
</html>
I get the following from transformPastedHTML
<p style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); font-family: "Avenir Next", Helvetica, Arial, sans-serif; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; background-color: rgb(254, 254, 254); text-decoration: none;">graph one</p><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); font-family: "Avenir Next", Helvetica, Arial, sans-serif; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; background-color: rgb(254, 254, 254); text-decoration: none;"><p style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); font-family: "Avenir Next", Helvetica, Arial, sans-serif; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; background-color: rgb(254, 254, 254); text-decoration: none;">graph two</p><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); font-family: "Avenir Next", Helvetica, Arial, sans-serif; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; background-color: rgb(254, 254, 254); text-decoration: none;"><p style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); font-family: "Avenir Next", Helvetica, Arial, sans-serif; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; background-color: rgb(254, 254, 254); text-decoration: none;">graph three</p><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); font-family: "Avenir Next", Helvetica, Arial, sans-serif; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; background-color: rgb(254, 254, 254); text-decoration: none;"><ul style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); font-family: "Avenir Next", Helvetica, Arial, sans-serif; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; background-color: rgb(254, 254, 254); text-decoration: none;"><li>one</li><li>two</li><li>three</li></ul>