Bug 1697484

Description of problem:
Login to a session, and tracker-extract begin to index files. It keeps crashing, flooding a lot the journal.
No other manual operations required.

Version-Release number of selected component:
tracker-miners-2.1.6-1.fc29

Additional info:
reporter:       libreport-2.10.0
backtrace_rating: 4
cmdline:        /usr/libexec/tracker-extract
crash_function: std::_Rb_tree<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::_Select1st<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > >, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >::lower_bound
executable:     /usr/libexec/tracker-extract
journald_cursor: s=e8f5c7ce77bd4c5aa2947e953f902ffe;i=f0cc;b=c536febf77794e00a4f8be5635eb8ddb;m=53b6b78f;t=5860358569e65;x=a05d96e4a2f296ee
kernel:         5.0.5-200.fc29.x86_64
rootdir:        /
runlevel:       N 5
type:           CCpp
uid:            1000

Truncated backtrace:
Thread no. 1 (10 frames)
 #0 std::_Rb_tree<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::_Select1st<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > >, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >::lower_bound at /usr/include/c++/8/bits/stl_tree.h:1202
 #1 std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >::lower_bound at /usr/include/c++/8/bits/stl_map.h:1240
 #2 std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >::operator[] at /usr/include/c++/8/bits/stl_map.h:495
 #3 XMPMeta::RegisterNamespace at /usr/src/debug/exiv2-0.26-12.fc29.x86_64/xmpsdk/src/XMPMeta.cpp:1048
 #4 WXMPMeta_RegisterNamespace_1 at /usr/src/debug/exiv2-0.26-12.fc29.x86_64/xmpsdk/src/WXMPMeta.cpp:228
 #5 TXMPMeta<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >::RegisterNamespace at /usr/src/debug/exiv2-0.26-12.fc29.x86_64/xmpsdk/include/client-glue/WXMP_Common.hpp:29
 #6 Exiv2::XmpParser::initialize at /usr/src/debug/exiv2-0.26-12.fc29.x86_64/src/xmp.cpp:404
 #7 Exiv2::XmpParser::decode(Exiv2::XmpData&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) at /usr/src/debug/exiv2-0.26-12.fc29.x86_64/src/xmp.cpp:546
 #8 Exiv2::Internal::TiffDecoder::decodeXmp at /usr/src/debug/exiv2-0.26-12.fc29.x86_64/src/tiffvisitor.cpp:408
 #9 Exiv2::Internal::TiffDirectory::doAccept at /usr/src/debug/exiv2-0.26-12.fc29.x86_64/src/tiffcomposite.cpp:919