** Description changed:

  Base on lwn 837033 [0], Linux 4.12 introduced two new uevents "bind" and
  "unbind" to the Linux device model which resulted in a number of
  software issues.
  
  So in this PR [1] which minimize issues resulting from this kernel
  change (but not avoid them entirely) by make uevent "sticky", meaning
  that once a tag is assigned to a device it will not be removed from the
  device again until the device itself is removed (i.e. unplugged).
  
+ An example causing by this issue, I had a usb printer (non-ippusbxd)
+ which connected to my laptop, but after unplugging it from my laptop,
+ the .device unit were still present, if a different printer gets plugged
+ to the same USB port then, it won't be configured correctly.
+ 
  [0] https://lwn.net/Articles/837033/
  [1] https://github.com/systemd/systemd/pull/16853/files

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https://bugs.launchpad.net/bugs/1906653

Title:
  Backport systemd to make uevents "sticky"

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