sigsegv in cell(,) with array constant

Unimportant Bug

IMHO this has low priority, because verrrry few users will be affected.

Observed Behavior

Entering the following formula produces an immediate segmentation fault:

=cell("formulatype",{1,2,3})

In contrast, if the first argument is invalid, there is no crash, presumably because the second argument is never evaluated:

=cell("Xormulatype",{1,2,3})

This is 100% reproducible chez moi. It is not a new bug. It is observed in an old-ish bog-standard distro version '1.12.38' and also in a very recent version '1.12.47' compiled from git sources.

Here's a stack dump: cell-crash.logg

Platform

:; ../src/gnumeric --version
gnumeric version '1.12.47'
datadir := '/usr/src/gnome/install/share/gnumeric/1.12.47'
libdir := '/usr/src/gnome/gnumeric'

:; uname -srmo
Linux 4.19.42+ x86_64 GNU/Linux

:; lsb_release -a
LSB Version:    core-9.20170808ubuntu1-noarch:cxx-3.0-amd64:cxx-3.0-noarch:cxx-3.1-amd64:cxx-3.1-noarch:cxx-3.2-amd64:cxx-3.2-noarch:cxx-4.0-amd64:cxx-4.0-noarch:cxx-4.1-amd64:cxx-4.1-noarch:desktop-3.1-amd64:desktop-3.1-noarch:desktop-3.2-amd64:desktop-3.2-noarch:desktop-4.0-amd64:desktop-4.0-noarch:desktop-4.1-amd64:desktop-4.1-noarch:graphics-2.0-amd64:graphics-2.0-noarch:graphics-3.0-amd64:graphics-3.0-noarch:graphics-3.1-amd64:graphics-3.1-noarch:graphics-3.2-amd64:graphics-3.2-noarch:graphics-4.0-amd64:graphics-4.0-noarch:graphics-4.1-amd64:graphics-4.1-noarch:multimedia-3.2-amd64:multimedia-3.2-noarch:multimedia-4.0-amd64:multimedia-4.0-noarch:multimedia-4.1-amd64:multimedia-4.1-noarch:printing-9.20170808ubuntu1-noarch:qt4-3.1-amd64:qt4-3.1-noarch:security-9.20170808ubuntu1-noarch
Distributor ID: Ubuntu
Description:    Ubuntu 18.04.4 LTS
Release:        18.04
Codename:       bionic