Hello Ping-Wu, or anyone else affected,

Accepted ibus-libpinyin into bionic-proposed. The package will build now
and be available at https://launchpad.net/ubuntu/+source/ibus-
libpinyin/1.11.0-1ubuntu0.18.04.1 in a few hours, and then in the
-proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested and change the tag from
verification-needed-bionic to verification-done-bionic. If it does not
fix the bug for you, please add a comment stating that, and change the
tag to verification-failed-bionic. In either case, without details of
your testing we will not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to ibus-libpinyin in Ubuntu.
https://bugs.launchpad.net/bugs/1768166

Title:
  Random crashes

Status in ibus-libpinyin package in Ubuntu:
  Fix Released
Status in libpinyin package in Ubuntu:
  Fix Released
Status in ibus-libpinyin source package in Bionic:
  Fix Committed
Status in libpinyin source package in Bionic:
  Fix Committed
Status in ibus-libpinyin source package in Cosmic:
  Fix Committed
Status in libpinyin source package in Cosmic:
  Fix Committed

Bug description:
  [Impact]

  ibus-libpinyin has proved to crash far too often. One or more files in
  ~/.cache/ibus/libpinyin get corrupted somehow, and emptying that
  directory allows the user to keep using ibus-libpinyin.

  In disco (and eoan) ibus-libpinyin 1.11.0 and libpinyin 2.2.2 are
  present, and the number of crashes has been reduced significantly:

  https://errors.ubuntu.com/?package=ibus-libpinyin&period=month

  Upstream ChangeLog ibus-libpinyin:
  ----------------------------------
  version 1.11.0
  * fixes keypad decimal
  * fixes emoji candidates
  * support configurable opencc config

  version 1.10.92
  * fixes Enter handling

  version 1.10.91
  * support ime.register_trigger in lua extension
  * support predicted candidates
  * support emoji input

  version 1.10.0
  * bug fixes

  version 1.9.91
  * migrate to use GSettings
  * fixes lyx short cut issue

  version 1.9.3
  * translate input method name in ibus menu

  Upstream ChangeLog libpinyin:
  -----------------------------
  version 2.2.2
  * minor fixes

  version 2.2.1
  * fixes predicted candidates

  version 2.2.0
  * bug fixes

  The proposal is to backport the disco versions of those packages to
  bionic and cosmic in an attempt to prevent crashes. Proposed uploads
  are available in this PPA:

  https://launchpad.net/~gunnarhj/+archive/ubuntu/ibus-libpinyin

  [Test Case]

  * Install from {bionic,cosmic}-proposed:
    - libpinyin13
    - libpinyin-data
    - ibus-libpinyin

  * Use "Intelligent Pinyin" for typing and confirm that no new issues
    show up when doing so.

  (This is apparently not a confirmation that the upload really fixes
  the bug. To compensate for that, we will await testing of the
  -proposed packages by a few Chinese users before considering the
  uploads verified.)

  Reverse dependencies
  --------------------
  Besides ibus-libpinyin, also fcitx-libpinyin and ibus-zhuyin depend on 
packages belonging to the libpinyin source package. So additional test measures 
are:

  * Install fcitx-libpinyin and ibus-zhuyin.

  * Use both those tools for typing Chinese, and confirm that you don't
    observe any adverse effects of the libpinyin upgrade.

  [Regression Potential]

  The changes are mostly bug fixes, so the regression risk should be
  limited. Also consider that the starting point is a rather unstable
  functionality.

  NOTE TO SRU TEAM: Please let the SRU age for longer than 7 days to get
  as much testing as possible. There do not seem to be too many risky
  changes carried, but such jumps in upstream versions always carry some
  regression-risk.

  [Original description]

  I have experienced random ibus-libpinyin crashes in bionic.  I cannot
  reproduce it, but it occurred at least a few times, even after the
  official bionic release.  Same crashes were also reported in the
  Ubuntu Chinese forum.

  Currently, the workaround is to delete the ~/.cache/ibus/libpinyin
  folder.

  I talked to Peng Wu, ibus-libpinyin's creator and main maintainer, he
  suggested that we update the version of ibus-libpinyin to 1.10.

  Can we give this update a trial?

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