https://bugs.kde.org/show_bug.cgi?id=401757
Bug ID: 401757
Summary: Complex weird behavior with layers and undo history
Product: krita
Version: git master
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: General
Assignee: krita-bugs-n...@kde.org
Reporter: storm.ant...@gmail.com
Target Milestone: ---
Sometimes the following behavior happens:
Painting on or changing visibility of a layer doesn't show anymore. Selecting
another layer makes the changes appear while creating a rogue "Move" entry in
undo history. Undoing stops working. Trying to undo steps and then paint or
change visibility of a layer may either result in the changes added after the
last undo step instead of the selected one and the creation of another false
"Move" undo entry, or it may force the undoing to take effect and apply the
action after the selected undo step as it would normally be expected - when
this happens the bug does away for the time being.
One time it happened while editing a local selection. This caused the selection
to be overwritten, which reflected on its thumbnail, but selecting it still
showed the decoration for the state before overwritten. After saving the
document and restarting Krita the selection was indeed overwritten just like
them thumbnail showed earlier.
The triggering of and behavior of this bug seems inconsistent, so far I was
unable to identify any patterns or reliable ways to reproduce it, but it
happened several times in the past week or so.
Saving the document and restarting Krita clears the issue but data loss may
happen if we were unable to force undoing to take effect before saving.
STEPS TO REPRODUCE
Unknown - but probably related to changing visibility of and/or moving layers.
Krita
Version: 4.2.0-pre-alpha (git 05baa5b)
Qt
Version (compiled): 5.11.2
Version (loaded): 5.11.2
OS Information
Build ABI: x86_64-little_endian-lp64
Build CPU: x86_64
CPU: x86_64
Kernel Type: linux
Kernel Version: 4.19.4-arch1-1-ARCH
Pretty Productname: Arch Linux
Product Type: arch
Product Version: unknown
OpenGL Info
Vendor: NVIDIA Corporation
Renderer: "GeForce GTX 750 Ti/PCIe/SSE2"
Version: "4.6.0 NVIDIA 415.18"
Shading language: 4.60 NVIDIA
Requested format: QSurfaceFormat(version 3.0, options
QFlags<QSurfaceFormat::FormatOption>(DeprecatedFunctions), depthBufferSize 24,
redBufferSize -1, greenBufferSize -1, blueBufferSize -1, alphaBufferSize -1,
stencilBufferSize 8, samples -1, swapBehavior
QSurfaceFormat::SwapBehavior(DoubleBuffer), swapInterval 0, colorSpace
QSurfaceFormat::ColorSpace(DefaultColorSpace), profile
QSurfaceFormat::OpenGLContextProfile(CompatibilityProfile))
Current format: QSurfaceFormat(version 4.6, options
QFlags<QSurfaceFormat::FormatOption>(DeprecatedFunctions), depthBufferSize 24,
redBufferSize 8, greenBufferSize 8, blueBufferSize 8, alphaBufferSize 0,
stencilBufferSize 8, samples -1, swapBehavior
QSurfaceFormat::SwapBehavior(DoubleBuffer), swapInterval 0, colorSpace
QSurfaceFormat::ColorSpace(DefaultColorSpace), profile
QSurfaceFormat::OpenGLContextProfile(CompatibilityProfile))
Version: 4.6
Supports deprecated functions true
is OpenGL ES: false
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