Unable to copy content from an element with one letter hint in Selection Mode

[brainwo]

Steps to reproduce

1. Go to https://en.wikipedia.org/wiki/Style_sheet_language
2. Press Alt+Shift+L
3. Hold Alt
4. Find a hint with just one letter and press it
5. The text of the element doesn't copy

Screen shot

linkhint.mp4

Description

Video above shows copying from elements with two-letter hints, one letter, then two letters.
Both two letters works, one letter doesn't copy anything.

Side note: apparently the video can't be played in Firefox, not sure why. I tried it on Chrome and it works just fine. Downloading also works.

Debug info

Debug info

{
  "version": "1.3.1",
  "browser": "firefox",
  "userAgent": "Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/116.0",
  "browserInfo": {
    "name": "Firefox",
    "vendor": "Mozilla",
    "version": "116.0.3",
    "buildID": "20230816233310"
  },
  "platformInfo": {
    "os": "linux",
    "arch": "x86-64"
  },
  "storage.sync": {
    "css": ".root {\n  font: menu;\n}\n\n.hint {\n  font-size: 12px;\n  padding: 2px;\n  color: black;\n  background-color: #ffffff;\n  border: solid 1px rgba(0, 0, 0, 0.5);\n  text-transform: uppercase;\n  font-weight: bold;\n  line-height: 1;\n  white-space: nowrap;\n}\n\n.highlighted {\n  background-color: #fb5d72;\ncolor: white;\n\n}\n\n.matchedChars {\n  opacity: 0.3;\n}\n\n.matchedText {\n  border-bottom: 2px solid #ef0fff;\n  box-sizing: border-box;\n}\n\n.status {\n  font-size: 14px;\n  padding: 4px 6px;\n  color: white;\n  background-color: black;\n  box-shadow: 0 0 1px 0 rgba(255, 255, 255, 0.5);\n  bottom: 0;\n  right: 0;\n  line-height: 1;\n}\n\n.peek .hint:not(.hasMatchedChars):not(.highlighted) {\n  opacity: 0.2;\n}\n\n.mixedCase {\n  text-transform: none;\n}\n\n.hidden,\n.hint:not(.hidden) ~ .shruggie,\n.status:empty {\n  opacity: 0 !important;\n}"
  },
  "storage.local": {
    "tutorialShown": true
  },
  "language": "en-US"
}

[lydell]

Tried reproducing this today. Basically, it seems to be the same thing as #92 (comment) – Firefox is overly twitchy with its “protection” :(