$ git clone -n https://src.fedoraproject.org/rpms/java-21-openjdk-portable.git /var/lib/mock/f40-build-1737371-24672/root/chroot_tmpdir/scmroot/java-21-openjdk-portable
Cloning into '/var/lib/mock/f40-build-1737371-24672/root/chroot_tmpdir/scmroot/java-21-openjdk-portable'...
$ git fetch origin 8cb8383ddfb630fe2c66ed7dc872971be02e21c1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/java-21-openjdk-portable
 * [new ref]         8cb8383ddfb630fe2c66ed7dc872971be02e21c1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8cb8383 Updated NEWS