RealtimeWYSIWYGEditorIT#editWithSelf is flickering

org.openqa.selenium.StaleElementReferenceException: 
The element with the reference 5c680913-842b-4256-8ab4-9c61e7d18a0b is stale; either its node document is not the active document, or it is no longer connected to the DOM
For documentation on this error, please visit: https://www.selenium.dev/documentation/webdriver/troubleshooting/errors#stale-element-reference-exception
Build info: version: '4.10.0', revision: 'c14d967899'
System info: os.name: 'Linux', os.arch: 'amd64', os.version: '4.19.0-16-cloud-amd64', java.version: '11.0.6'
Driver info: org.openqa.selenium.remote.RemoteWebDriver
Command: [e4565efe-8a0f-4207-9dbc-1e7a9a54b9d7, getElementAttribute {id=5c680913-842b-4256-8ab4-9c61e7d18a0b, name=src}]
Capabilities {acceptInsecureCerts: true, browserName: firefox, browserVersion: 120.0, moz:accessibilityChecks: false, moz:buildID: 20231116134553, moz:debuggerAddress: 127.0.0.1:10199, moz:firefoxOptions: {prefs: {dom.disable_beforeunload: false}}, moz:geckodriverVersion: 0.33.0, moz:headless: false, moz:platformVersion: 4.19.0-16-cloud-amd64, moz:processID: 125, moz:profile: /tmp/rust_mozprofileIbBTbi, moz:shutdownTimeout: 60000, moz:webdriverClick: true, moz:windowless: false, pageLoadStrategy: normal, platformName: linux, proxy: Proxy(), se:bidiEnabled: false, se:cdp: ws://172.17.0.7:4444/sessio..., se:cdpVersion: 85.0, se:noVncPort: 7900, se:vnc: ws://172.17.0.7:4444/sessio..., se:vncEnabled: true, se:vncLocalAddress: ws://172.17.0.7:7900, setWindowRect: true, strictFileInteractability: false, timeouts: {implicit: 0, pageLoad: 300000, script: 30000}, unhandledPromptBehavior: ignore}
Element: [[RemoteWebDriver: firefox on linux (e4565efe-8a0f-4207-9dbc-1e7a9a54b9d7)] -> id: rt-user-7a646a4697bb65cbf2ee90758da18444]
Session ID: e4565efe-8a0f-4207-9dbc-1e7a9a54b9d7
	at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
	at org.openqa.selenium.remote.codec.w3c.W3CHttpResponseCodec.createException(W3CHttpResponseCodec.java:199)
	at org.openqa.selenium.remote.codec.w3c.W3CHttpResponseCodec.decode(W3CHttpResponseCodec.java:132)
	at org.openqa.selenium.remote.codec.w3c.W3CHttpResponseCodec.decode(W3CHttpResponseCodec.java:51)
	at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:191)
	at org.openqa.selenium.remote.TracedCommandExecutor.execute(TracedCommandExecutor.java:51)
	at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:531)
	at org.openqa.selenium.remote.RemoteWebElement.execute(RemoteWebElement.java:242)
	at org.openqa.selenium.remote.RemoteWebElement.getAttribute(RemoteWebElement.java:150)
	at org.xwiki.realtime.wysiwyg.test.po.RealtimeRichTextAreaElement$CoeditorPosition.lambda$getAvatarURL$2(RealtimeRichTextAreaElement.java:79)
	at org.xwiki.ckeditor.test.po.RichTextAreaElement.getFromIFrame(RichTextAreaElement.java:203)
	at org.xwiki.realtime.wysiwyg.test.po.RealtimeRichTextAreaElement.access$100(RealtimeRichTextAreaElement.java:41)
	at org.xwiki.realtime.wysiwyg.test.po.RealtimeRichTextAreaElement$CoeditorPosition.getAvatarURL(RealtimeRichTextAreaElement.java:79)
	at org.xwiki.realtime.wysiwyg.test.ui.RealtimeWYSIWYGEditorIT.editWithSelf(RealtimeWYSIWYGEditorIT.java:230)