Before You File a Bug Report Please Confirm You Have Done The Following...

• I have tried restarting my IDE and the issue persists.
• I have updated to the latest version of the packages.
• I havesearched for related issues and found none that matched my issue.
• I haveread the FAQ and my problem is not listed.

Playground Link

https://typescript-eslint.io/play/#ts=5.4.2&fileType=.tsx&code=KYDwDg9gTgLgBAYwgOwM7wLYEMoGthRwC8cARNngaXFqoiugNwCwAUKJLHAJbIwEAzLAmBwAIlhhY4AbzZw4FfFABccGAE8wwCAMU5lLVgoBuWADYBXYGvRReAcyMBfNgMvIEMbikRRgksASUgAUAJRqwdJyxvRo8ABGtKIkMvqUqunKcM5GCv4wllDIsnAAdBVJqMAANHBmVjZk1LlszkA&eslintrc=N4KABGBEBOCuA2BTAzpAXGUEKQAIBcBPABxQGNoBLY-AWhXkoDt8B6Jge1tiacTJTIAhtEK0ipWkOTJE0fJQ5N0UOdA7RI4MAF8QOoA&tsconfig=N4KAvkA&tokens=false

Repro Code

exportconstmarker="marker"asconst;exportinterfaceData{marker:typeofmarker;value:string;}functioncreateData():Data{constbase={marker:marker};return{ ...base,value:""};}

ESLint Config

module.exports={"rules":{"@typescript-eslint/no-unnecessary-type-assertion":"error"}}

tsconfig

{}

Expected Result

The first line of this code should not report an error for theas const assertion, since this assertion is necessary - removing it is a TypeScript compilation error (seeTypeScript playground).

Actual Result

Starting in typescript-eslint@7.3 (presumably#8558), the first line of this code reports a @typescript-eslint/no-unnecessary-type-assertion error.

Additional Info

No response