IndexSizeError: Failed to execute 'collapse' on 'Selection'

[raineorshine]

Steps to Reproduce

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<meta charset='utf-8'><span style="color: rgb(72, 72, 72); font-family: sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">Gurney Halleck––the novel’s most rousing, personality-infused character––is distilled into just a scowling military commander as played by Josh Brolin. In the novel he sings whimsical songs whilst strumming a nine-string “baliset”—such a beacon of levity. This<span> </span></span><em style="box-sizing: border-box; text-transform: none; font-style: italic; color: rgb(72, 72, 72); font-family: sans-serif; font-size: 16px; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;">Dune</em><span style="color: rgb(72, 72, 72); font-family: sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;"><span> </span>has the atmosphere that all pleasurable music-listening was abolished alongside “thinking machines” when its story picks up in the 10th millennium A.D. </span>

Current Behavior

IndexSizeError: Failed to execute 'collapse' on 'Selection': There is no child at offset 3.

Expected Behavior

No error