When opening this .mscz file, musescore crashes

I can conform the crsah, in 2.0.3 as well as in the latest development versions of 2.1 and master. In the later I see the following stack trace:

1 QVector::contains qvector.h 852 0xddb1dc
2 Ms::Note::addSpannerBack note.h 473 0xce789e
3 Ms::Note::readProperties note.cpp 1411 0x7dab8c
4 Ms::readNote read206.cpp 861 0x8fa08b
5 Ms::readChord read206.cpp 951 0x8fa7ee
6 Ms::readMeasure read206.cpp 1361 0x8fc032
7 Ms::readStaffContent read206.cpp 1847 0x8fec0b
8 Ms::readScore read206.cpp 1946 0x8ff728
9 Ms::MasterScore::read206 read206.cpp 2263 0x901685
10 Ms::MasterScore::read1 scorefile.cpp 919 0x806538
11 Ms::MasterScore::loadCompressedMsc scorefile.cpp 783 0x805726
12 Ms::MasterScore::loadMsc scorefile.cpp 834 0x805c4d
13 Ms::MasterScore::loadMsc scorefile.cpp 826 0x805b7c
14 Ms::readScore file.cpp 2101 0x597c47
15 Ms::MuseScore::readScore file.cpp 329 0x587fac
16 Ms::MuseScore::dropEvent musescore.cpp 1966 0x48c1c7
17 ZN7QWidget5eventEP6QEvent 0x1ea2de01
18 ?? 0x28c548

The spanner it stumbles accross apparently is a Glissando.
Looking into the file I found a duplicate Glissande and removed it, this file loads, no crash anymore, see attached

Somhow this soinds familiar, ISTR we had at least one other case of duplicate glissandos leading to a crash.