Hugin crashes when panorama source file is deleted

[Vitaly Isaev]

(hugin:8574): GdkPixbuf-CRITICAL **: gdk_pixbuf_new: assertion 'width > 0' failed
ContractViolation:
Precondition violation!
Unable to open file '/mnt/storage/photo/Золотое кольцо/IMG_3022.JPG'.
(/build/hugin-cFUTxA/hugin-2014.0.0+dfsg/src/foreign/vigra/vigra_impex/codecmanager.cxx:206)

ERROR: 13:23:47.361967 (/build/hugin-cFUTxA/hugin-2014.0.0+dfsg/src/hugin_base/huginapp/ImageCache.cpp:697) loadImageSafely(): Error during image reading:
Precondition violation!
Unable to open file '/mnt/storage/photo/Золотое кольцо/IMG_3022.JPG'.
(/build/hugin-cFUTxA/hugin-2014.0.0+dfsg/src/foreign/vigra/vigra_impex/codecmanager.cxx:206)

hugin: /usr/include/boost/smart_ptr/shared_ptr.hpp:653: typename boost::detail::sp_member_access<T>::type boost::shared_ptr<T>::operator->() const [with T = HuginBase::ImageCache::Entry; typename boost::detail::sp_member_access<T>::type = HuginBase::ImageCache::Entry*]: Assertion `px != 0' failed.
[1] 8574 abort hugin

Operating System: Linux 3.16.0-4-amd64 x86_64
Architecture: 64 bit
Free memory: 4951976 kiB

Hugin
Version: 2014.0.0.5da69bc383dd