Re: history file on replica and double switchover

The following review has been posted through the commitfest application:
make installcheck-world:  tested, failed
Implements feature:       tested, passed
Spec compliant:           tested, passed
Documentation:            tested, passed

"make installcheck-world" test was performed on branch "REL_13_STABLE" with tag "REL_13_0". The regression failed was not caused by the "history file" patch, since it has the same error on my environment even without any patch. So the failure is not related, in other words, the patch "history_replica_v4.patch" is good for me. 

Below is the failed message when tested with and without "history_replica_v4.patch".
t/004_timeline_switch.pl ............. ok   
t/005_replay_delay.pl ................ ok   
t/006_logical_decoding.pl ............ # Looks like your test exited with 29 before it could output anything.
t/006_logical_decoding.pl ............ Dubious, test returned 29 (wstat 7424, 0x1d00)
Failed 14/14 subtests 
t/007_sync_rep.pl .................... ok     
t/008_fsm_truncation.pl .............. ok   
t/009_twophase.pl .................... ok     
t/010_logical_decoding_timelines.pl .. # Looks like your test exited with 29 before it could output anything.
t/010_logical_decoding_timelines.pl .. Dubious, test returned 29 (wstat 7424, 0x1d00)
Failed 13/13 subtests 
t/011_crash_recovery.pl .............. ok   
t/012_subtransactions.pl ............. ok     
t/013_crash_restart.pl ............... ok     
t/014_unlogged_reinit.pl ............. ok     
t/015_promotion_pages.pl ............. ok   
t/016_min_consistency.pl ............. ok   
t/017_shm.pl ......................... ok   
t/018_wal_optimize.pl ................ ok     
t/019_replslot_limit.pl .............. ok     
t/020_archive_status.pl .............. ok     

Test Summary Report
-------------------
t/006_logical_decoding.pl          (Wstat: 7424 Tests: 0 Failed: 0)
  Non-zero exit status: 29
  Parse errors: Bad plan.  You planned 14 tests but ran 0.
t/010_logical_decoding_timelines.pl (Wstat: 7424 Tests: 0 Failed: 0)
  Non-zero exit status: 29
  Parse errors: Bad plan.  You planned 13 tests but ran 0.
Files=20, Tests=202, 103 wallclock secs ( 0.18 usr  0.04 sys + 21.20 cusr 23.52 csys = 44.94 CPU)
Result: FAIL
make[2]: *** [installcheck] Error 1
make[2]: Leaving directory `/home/david/git/postgres/src/test/recovery'
make[1]: *** [installcheck-recovery-recurse] Error 2
make[1]: Leaving directory `/home/david/git/postgres/src/test'
make: *** [installcheck-world-src/test-recurse] Error 2