Our builds are using the wrong fedora version when taged with fedora:latest

i am from mate-desktop environment and we are using Travis Ci at github.
In our configs we are using the fedora:latest tag which should be fedora 32.
But all travis build are using the fedora 31 docker image.

Latest build for this repo from today:

>>> [docker pull fedora:latest] <<<
latest: Pulling from library/fedora
4c69497db035: Pulling fs layer
4c69497db035: Verifying Checksum
4c69497db035: Download complete
4c69497db035: Pull complete
Digest: sha256:ee55117b3058f2f12961184fae4b9c392586e400487626c6bd0d15b4eae94ecc
Status: Downloaded newer image for fedora:latest
>>> [docker inspect -f '{{.State.Running}}' mate-panel-fedora-build] <<<
>>> [docker run --name mate-panel-fedora-build --volume /home/travis/build/mate-desktop/mate-panel:/rootdir -t -d fedora:latest /bin/bash] <<<
>>> [docker exec -t mate-panel-fedora-build dnf update -y] <<<
Fedora Modular 31 - x86_64                      5.5 MB/s | 5.2 MB     00:00    
Fedora Modular 31 - x86_64 - Updates            5.6 MB/s | 4.1 MB     00:00    
Fedora 31 - x86_64 - Updates                     21 MB/s |  26 MB     00:01    
Fedora 31 - x86_64                               27 MB/s |  71 MB     00:02    

As you can see the f31 docker image is used.

I filed already a report at fedora and the guys updated the latest tag to fedora 32 12 days ago.
Fix is here

And the latest tag pointed to latest, 32 at https://hub.docker.com/_/fedora

So why does travis not use fedora 32 for our builds.
Honestly, i don’t have any clue at the moment where i have to look after fedora guys fixed the problem from their side.
Any help is appreciated.

Thank you