RealtimeWYSIWYGEditorIT#preventEmptyRevisions is flickering

org.openqa.selenium.TimeoutException: 
Expected condition failed: waiting for org.xwiki.test.ui.XWikiWebDriver$$Lambda/0x00007f0234cc6970@6f87a888
(tried for 10 seconds with 500 milliseconds interval)
Build info: version: '4.41.0', revision: '9fc754f'
System info: os.name: 'Linux', os.arch: 'amd64', os.version: '6.1.0-37-cloud-amd64', java.version: '21.0.10'
Driver info: org.xwiki.test.ui.XWikiWebDriver
Capabilities {acceptInsecureCerts: true, browserName: firefox, browserVersion: 147.0.4, container:hostname: dab278eec2ab, moz:accessibilityChecks: false, moz:buildID: 20260212191108, moz:firefoxOptions: {prefs: {dom.disable_beforeunload: false, remote.active-protocols: 1, remote.events.async.enabled: false}}, moz:geckodriverVersion: 0.36.0, moz:headless: false, moz:platformVersion: 6.1.0-37-cloud-amd64, moz:processID: 175, moz:profile: /tmp/rust_mozprofileGO9wnr, moz:shutdownTimeout: 60000, moz:webdriverClick: true, moz:windowless: false, pageLoadStrategy: normal, platformName: linux, proxy: Proxy(), se:cdpEnabled: false, se:containerName: dab278eec2ab, se:deleteSessionOnUi: true, se:downloadsEnabled: true, se:gridWebSocketUrl: ws://127.0.0.1:36567/sessio..., 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, userAgent: Mozilla/5.0 (X11; Linux x86..., webSocketUrl: ws://172.17.0.7:4444/sessio...}
Session ID: 36590169-4aba-4f11-83a1-dd6be2454d43
	at org.openqa.selenium.support.ui.WebDriverWait.timeoutException(WebDriverWait.java:85)
	at org.openqa.selenium.support.ui.FluentWait.until(FluentWait.java:233)
	at org.xwiki.test.ui.XWikiWebDriver.waitUntilCondition(XWikiWebDriver.java:229)
	at org.xwiki.test.ui.XWikiWebDriver.waitUntilElementsAreVisible(XWikiWebDriver.java:331)
	at org.xwiki.test.ui.XWikiWebDriver.waitUntilElementIsVisible(XWikiWebDriver.java:286)
	at org.xwiki.test.ui.XWikiWebDriver.waitUntilElementIsVisible(XWikiWebDriver.java:274)
	at org.xwiki.realtime.test.po.HistoryDropdown.open(HistoryDropdown.java:51)
	at org.xwiki.realtime.wysiwyg.test.ui.RealtimeWYSIWYGEditorIT.preventEmptyRevisions(RealtimeWYSIWYGEditorIT.java:2404)