Public bug reported:

I'm not entirely sure this isn't a bug with bash, instead of gnome-
terminal.

Full-width character, followed by at least one full word with a space
after it.

Example: あa a

With trailing space.

Typing before the full-width character causes the 'あ' to be pushed to
next line, with a blank space on previous line though if selected and
copied it will actually produce a space.

The 'あ' occupies two columns on the new line, but characters after the
first a are only moved one column to the right. The first a, or the
first character after the 'あ' including a space, is pushed two columns
to the right, covering the second character after the 'あ'.

A similar bug occurs when deleting characters before the 'あ', except no
trailing space is required. A character is duplicated but might be first
letter of first word on second line, or last letter of next word.
Duplicating one letter as soon as 'あ' goes to previous line is easy to
replicate; duplicating other letters as further characters before 'あ'
are deleted might only happen after resetting the line using up arrow
then down arrow, but actually just because of forward bug because
displayed characters change after pressing up then down. Second word on
line only seems to be affected if no other words after it.

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: gnome-terminal 3.6.2-0ubuntu1
ProcVersionSignature: Ubuntu 3.16.0-30.40-generic 3.16.7-ckt3
Uname: Linux 3.16.0-30-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.14.7-0ubuntu8.2
Architecture: amd64
CurrentDesktop: Unity
Date: Tue Apr 14 02:37:03 2015
SourcePackage: gnome-terminal
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: gnome-terminal (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug utopic

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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to gnome-terminal in Ubuntu.
https://bugs.launchpad.net/bugs/1443852

Title:
  Display bug for editing lines with full-width characters

Status in gnome-terminal package in Ubuntu:
  New

Bug description:
  I'm not entirely sure this isn't a bug with bash, instead of gnome-
  terminal.

  Full-width character, followed by at least one full word with a space
  after it.

  Example: あa a

  With trailing space.

  Typing before the full-width character causes the 'あ' to be pushed to
  next line, with a blank space on previous line though if selected and
  copied it will actually produce a space.

  The 'あ' occupies two columns on the new line, but characters after the
  first a are only moved one column to the right. The first a, or the
  first character after the 'あ' including a space, is pushed two columns
  to the right, covering the second character after the 'あ'.

  A similar bug occurs when deleting characters before the 'あ', except
  no trailing space is required. A character is duplicated but might be
  first letter of first word on second line, or last letter of next
  word. Duplicating one letter as soon as 'あ' goes to previous line is
  easy to replicate; duplicating other letters as further characters
  before 'あ' are deleted might only happen after resetting the line
  using up arrow then down arrow, but actually just because of forward
  bug because displayed characters change after pressing up then down.
  Second word on line only seems to be affected if no other words after
  it.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: gnome-terminal 3.6.2-0ubuntu1
  ProcVersionSignature: Ubuntu 3.16.0-30.40-generic 3.16.7-ckt3
  Uname: Linux 3.16.0-30-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.14.7-0ubuntu8.2
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Tue Apr 14 02:37:03 2015
  SourcePackage: gnome-terminal
  UpgradeStatus: No upgrade log present (probably fresh install)

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