Crash when NinePatchImage's source is changed

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==27192==ERROR: AddressSanitizer: heap-use-after-free on address 0x7fbe70d87d04 at pc 0x7fbe7be22733 bp 0x7fbe581b0ca0 sp 0x7fbe581b0448 
READ of size 1272 at 0x7fbe70d87d04 thread T7 (QSGRenderThread) 
    #0 0x7fbe7be22732 (/usr/lib/x86_64-linux-gnu/libasan.so.4+0x79732) 
    #1 0x7fbe7aefb63a in QImage::copy(QRect const&) const image/qimage.cpp:1234 
    #2 0x7fbe7b230cb7 in QOpenGLTextureUploader::textureImage(unsigned int, QImage const&, QFlags<QOpenGLTextureUploader::BindOption>, QSize) opengl/qopengltextureuploader.cpp:372 
    #3 0x7fbe7b82bfeb in QSGPlainTexture::bind() scenegraph/util/qsgplaintexture.cpp:238 
    #4 0x7fbe7b82e885 in QSGOpaqueTextureMaterialShader::updateState(QSGMaterialShader::RenderState const&, QSGMaterial*, QSGMaterial*) scenegraph/util/qsgtexturematerial.cpp:112 
    #5 0x7fbe7b813e48 in QSGBatchRenderer::Renderer::renderMergedBatch(QSGBatchRenderer::Batch const*) scenegraph/coreapi/qsgbatchrenderer.cpp:3058 
    #6 0x7fbe7b817854 in QSGBatchRenderer::Renderer::renderBatches() scenegraph/coreapi/qsgbatchrenderer.cpp:4027 
    #7 0x7fbe7b817d96 in QSGBatchRenderer::Renderer::render() scenegraph/coreapi/qsgbatchrenderer.cpp:4324   
    #8 0x7fbe7b8002e2 in QSGRenderer::renderScene(QSGBindable const&) scenegraph/coreapi/qsgrenderer.cpp:264 
    #9 0x7fbe7b8007d6 in QSGRenderer::renderScene(unsigned int) scenegraph/coreapi/qsgrenderer.cpp:212 
    #10 0x7fbe7b869c40 in QSGDefaultRenderContext::renderNextFrame(QSGRenderer*, unsigned int) scenegraph/qsgdefaultrendercontext.cpp:228 
    #11 0x7fbe7b8cd368 in QQuickWindowPrivate::renderSceneGraph(QSize const&, QSize const&) items/qquickwindow.cpp:541 
    #12 0x7fbe7b876f0e in QSGRenderThread::syncAndRender(QImage*) scenegraph/qsgthreadedrenderloop.cpp:837 
    #13 0x7fbe7b87ad8a in QSGRenderThread::run() scenegraph/qsgthreadedrenderloop.cpp:1043 
    #14 0x7fbe79f84414 in QThreadPrivate::start(void*) thread/qthread_unix.cpp:342 
    #15 0x7fbe78f1b6da (/lib/x86_64-linux-gnu/libpthread.so.0+0x76da) 
    #16 0x7fbe79660a3e (/lib/x86_64-linux-gnu/libc.so.6+0x121a3e)

0x7fbe70d87d04 is located 1284 bytes inside of 206080-byte region [0x7fbe70d87800,0x7fbe70db9d00) 
freed by thread T0 here: 
    #0 0x7fbe7be877a8 (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xde7a8) 
    #1 0x7fbe7aefa5c9 in QImageData::~QImageData() image/qimage.cpp:177

previously allocated by thread T0 here: 
    #0 0x7fbe7be87b40 (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xdeb40) 
    #1 0x7fbe7aefa93b in QImageData::create(QSize const&, QImage::Format) image/qimage.cpp:160

Thread T7 (QSGRenderThread) created by T0 here: 
    #0 0x7fbe7bde0d2f (/usr/lib/x86_64-linux-gnu/libasan.so.4+0x37d2f) 
    #1 0x7fbe79f83cf0 in QThread::start(QThread::Priority) thread/qthread_unix.cpp:716

SUMMARY: AddressSanitizer: heap-use-after-free (/usr/lib/x86_64-linux-gnu/libasan.so.4+0x79732) 
Shadow bytes around the buggy address: 
  0x0ff84e1a8f50: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 
  0x0ff84e1a8f60: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 
  0x0ff84e1a8f70: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 
  0x0ff84e1a8f80: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 
  0x0ff84e1a8f90: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 
=>0x0ff84e1a8fa0:[fd]fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 
  0x0ff84e1a8fb0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 
  0x0ff84e1a8fc0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 
  0x0ff84e1a8fd0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 
  0x0ff84e1a8fe0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 
  0x0ff84e1a8ff0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 
Shadow byte legend (one shadow byte represents 8 application bytes): 
  Addressable: 00 
  Partially addressable: 01 02 03 04 05 06 07 
  Heap left redzone: fa 
  Freed heap region: fd 
  Stack left redzone: f1 
  Stack mid redzone: f2 
  Stack right redzone: f3 
  Stack after return: f5 
  Stack use after scope: f8 
  Global redzone: f9 
  Global init order: f6 
  Poisoned by user: f7 
  Container overflow: fc 
  Array cookie: ac 
  Intra object redzone: bb 
  ASan internal: fe 
  Left alloca redzone: ca 
  Right alloca redzone: cb 
==27192==ABORTING