cache is not used for a tag

[OlegYch]

i have a pretty simple setup: https://github.com/OlegYch/potplayer-gemini/blob/scala-native/.github/workflows/release.yml#L43

      - name: Cache project
        uses: actions/cache@v4
        with:
          path: ./
          key: ${{ runner.os }}-project-${{ github.run_number }}
          restore-keys: ${{ runner.os }}-project-

i have just run a build which produced a cache: https://github.com/OlegYch/potplayer-gemini/actions/runs/18432094942/job/52520727174

however a subsequent build can't find the cache: https://github.com/OlegYch/potplayer-gemini/actions/runs/18435401212

even though a matching cache is here: