Comment 8 for bug 1839290

Here is a minimal example, courtesy of bl33pbl0p from the github issue. I've double-checked it and it is valid test case for this issue:

$ systemctl cat foo
# /etc/systemd/system/foo.service
[Unit]
PartOf=bar.service
[Service]
ExecStart=/bin/sleep infinity
RestartSec=0s
Restart=always

$ systemctl cat bar
# /etc/systemd/system/bar.service
[Unit]
BindsTo=foo.service
#Same with or without After=, the window is very small to make a difference.
After=foo.service
[Service]
ExecStart=/bin/sleep infinity

$ sudo systemctl status foo bar
● foo.service
   Loaded: loaded (/etc/systemd/system/foo.service; static; vendor preset: enabled)
   Active: active (running) since Wed 2020-02-12 11:38:30 MSK; 36s ago
 Main PID: 1614 (sleep)
    Tasks: 1
   Memory: 172.0K
      CPU: 1ms
   CGroup: /system.slice/foo.service
           └─1614 /bin/sleep infinity

Feb 12 11:38:30 pono-mac systemd[1]: Started foo.service.

● bar.service
   Loaded: loaded (/etc/systemd/system/bar.service; static; vendor preset: enabled)
   Active: active (running) since Wed 2020-02-12 11:38:30 MSK; 36s ago
 Main PID: 1625 (sleep)
    Tasks: 1
   Memory: 188.0K
      CPU: 972us
   CGroup: /system.slice/bar.service
           └─1625 /bin/sleep infinity

Feb 12 11:38:30 pono-mac systemd[1]: Started bar.service.

$ sudo kill -6 1614
$ sudo systemctl status foo bar
● foo.service
   Loaded: loaded (/etc/systemd/system/foo.service; static; vendor preset: enabled)
   Active: failed (Result: resources) since Wed 2020-02-12 11:39:24 MSK; 2s ago
  Process: 1614 ExecStart=/bin/sleep infinity (code=killed, signal=ABRT)
 Main PID: 1614 (code=killed, signal=ABRT)

Feb 12 11:39:24 pono-mac systemd[1]: foo.service: Unit entered failed state.
Feb 12 11:39:24 pono-mac systemd[1]: foo.service: Failed with result 'signal'.
Feb 12 11:39:24 pono-mac systemd[1]: foo.service: Service has no hold-off time, scheduling restart.
Feb 12 11:39:24 pono-mac systemd[1]: foo.service: Failed to schedule restart job: Transaction is destructive.
Feb 12 11:39:24 pono-mac systemd[1]: foo.service: Unit entered failed state.
Feb 12 11:39:24 pono-mac systemd[1]: foo.service: Failed with result 'resources'.

● bar.service
   Loaded: loaded (/etc/systemd/system/bar.service; static; vendor preset: enabled)
   Active: inactive (dead) since Wed 2020-02-12 11:39:24 MSK; 2s ago
  Process: 1625 ExecStart=/bin/sleep infinity (code=killed, signal=TERM)
 Main PID: 1625 (code=killed, signal=TERM)

Feb 12 11:38:30 pono-mac systemd[1]: Started bar.service.
Feb 12 11:39:24 pono-mac systemd[1]: Stopping bar.service...
Feb 12 11:39:24 pono-mac systemd[1]: Stopped bar.service.