Keys with value "0" don't display in results table

[jennfshr]

 pav results -kname,mpi_ranks,slowest_rank,runtime_seconds,network_timeouts,minutes "$@"
 Test Results for: s1154
-------+---------------------+----------+--------+---------------------+-----------+--------------+-----------------+------------------+---------
 Id    | Name                | Started  | Result | Name                | Mpi ranks | Slowest rank | Runtime seconds | Network timeouts | Minutes
-------+---------------------+----------+--------+---------------------+-----------+--------------+-----------------+------------------+---------
 40121 | ziatest.scaling.512 | 05:08:40 | PASS   | ziatest.scaling.512 | 56320     | 35921        | 19              |                  |
 40120 | ziatest.scaling.256 | 05:12:36 | PASS   | ziatest.scaling.256 | 28160     | 25485        | 24              |                  |
 40119 | ziatest.scaling.128 | 05:11:24 | PASS   | ziatest.scaling.128 | 14080     | 2464         | 26              |                  |
 40118 | ziatest.scaling.64  | 05:12:40 | PASS   | ziatest.scaling.64  | 7040      | 2960         | 25              |                  |
 40117 | ziatest.scaling.32  |          |        | ziatest.scaling.32  |           |              |                 |                  |
 40116 | ziatest.scaling.16  | 05:09:06 | PASS   | ziatest.scaling.16  | 1760      | 1128         | 6               |                  |
 40115 | ziatest.scaling.8   | 05:11:36 | PASS   | ziatest.scaling.8   | 880       | 714          | 24              |                  |
 40114 | ziatest.scaling.4   | 05:12:21 | PASS   | ziatest.scaling.4   | 440       | 18           | 23              |                  |
 40113 | ziatest.scaling.2   | 05:11:30 | PASS   | ziatest.scaling.2   | 220       | 106          | 9               |                  |

but they are actually successfully extracted from the results:

[{'created': 1693393715.7634046,
  'duration': 21.65921425819397,
  'finished': 1693393742.591262,
  'id': 40121,
  'job_info': {'id': '246331', 'sys_name': 'crossroads'},
  'minutes': 0,
  'mpi': 'cray-mpich',
  'mpi_ranks': 56320,
  'name': 'ziatest.scaling.512',
  'network_timeouts': 0,

but their value is a zero.