./placementoptimizer.py showremapped --by-osd throws KeyError if there is recovery

[patrakov]

$ ./placementoptimizer.py showremapped --state broken-cluster-1.xz --by-osd
Traceback (most recent call last):
  File "/tmp/bug-report/./placementoptimizer.py", line 5496, in <module>
    exit(main())
         ^^^^^^
  File "/tmp/bug-report/./placementoptimizer.py", line 5490, in main
    run()
  File "/tmp/bug-report/./placementoptimizer.py", line 5460, in <lambda>
    run = lambda: showremapped(args, state)
                  ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/tmp/bug-report/./placementoptimizer.py", line 5346, in showremapped
    print(f"{osdname}: {cluster.osds[osdid]['host_name']}  =>{sum_to} {sum_data_to_pp} <={sum_from} {sum_data_from_pp}"
                        ~~~~~~~~~~~~^^^^^^^
KeyError: -1

Without the --by-osd flag, it works:

$ ./placementoptimizer.py showremapped --state broken-cluster-1.xz
pg 28.28c degraded+waiting   55.7G: 0 of 1008986, 0.0%, -1->120
pg 28.272 degraded+waiting   55.6G: 570 of 1003522, 0.1%, -1->120
pg 28.277 degraded+waiting   55.5G: 0 of 1004690, 0.0%, -1->84
...

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