Triggering a short-living service with a path unit making use of PathExists restarts the service multiple times in a row then fails

Issue

• On RHEL7 and RHEL8, having a short-living service triggered by PathExists property was not getting respawned until start limit occurred, whereas with RHEL9 and later it does and fails

  RHEL9 # cat /etc/systemd/system/test-pathexists.path
  [Path]
  PathExists=/tmp/pathexists.test
  
  RHEL9 # cat /etc/systemd/system/test-pathexists.service
  [Service]
  ExecStart=/bin/echo "I'm getting triggered"
  
  RHEL9 # systemctl start test-pathexists.path 
  RHEL9 # touch /tmp/pathexists.test
  RHEL9 # journal -u test-pathexists.service
  [...] 13:03:24 vm-rhel9 systemd[1]: Started test-pathexists.service.
  [...] 13:03:24 vm-rhel9 echo[1408]: I'm getting triggered
  [...] 13:03:24 vm-rhel9 systemd[1]: test-pathexists.service: Deactivated successfully.
  [...] 13:03:24 vm-rhel9 systemd[1]: Started test-pathexists.service.
  [...] 13:03:24 vm-rhel9 echo[1409]: I'm getting triggered
  [...] 13:03:24 vm-rhel9 systemd[1]: test-pathexists.service: Deactivated successfully.
  [...] 13:03:24 vm-rhel9 systemd[1]: Started test-pathexists.service.
  [...] 13:03:24 vm-rhel9 echo[1410]: I'm getting triggered
  [...] 13:03:24 vm-rhel9 systemd[1]: test-pathexists.service: Deactivated successfully.
  [...] 13:03:24 vm-rhel9 systemd[1]: Started test-pathexists.service.
  [...] 13:03:24 vm-rhel9 echo[1411]: I'm getting triggered
  [...] 13:03:24 vm-rhel9 systemd[1]: test-pathexists.service: Deactivated successfully.
  [...] 13:03:24 vm-rhel9 systemd[1]: Started test-pathexists.service.
  [...] 13:03:24 vm-rhel9 echo[1412]: I'm getting triggered
  [...] 13:03:24 vm-rhel9 systemd[1]: test-pathexists.service: Deactivated successfully.
  [...] 13:03:24 vm-rhel9 systemd[1]: test-pathexists.service: Start request repeated too quickly.
  [...] 13:03:24 vm-rhel9 systemd[1]: test-pathexists.service: Failed with result 'start-limit-hit'.
  [...] 13:03:24 vm-rhel9 systemd[1]: Failed to start test-pathexists.service.