[Gambas-bugtracker] Bug #1879: Properties 'Arguments' field crashes IDE if backspace pressed when all text is gone

[bugtracker at gambaswiki.org]

http://gambaswiki.org/bugtracker/edit?object=BUG.1879&from=L21haW4-

Bruce STEERS reported a new bug.

Summary
-------

Properties 'Arguments' field crashes IDE if backspace pressed when all text is gone

Type             : Bug
Priority         : Medium
Gambas version   : 3.12
Product          : Development Environment


Description
-----------

If I'm editing 'Arguments' in the project properties window,
If I press backspace to delete the text and have removed all the text and accidentally press backspace once the text has gone the IDE crashes with the following message...


This application has raised an unexpected
error and must abort.

[29] Invalid object.
ArgListBox.TextBox_KeyPress.154


System information
------------------

Linux bonus-pc 4.19.0-10-amd64 #1 SMP Debian 4.19.132-1 (2020-07-24) x86_64 GNU/Linux

MATE Desktop 1.20.4

lscpu output...

Architecture:        x86_64
CPU op-mode(s):      32-bit, 64-bit
Byte Order:          Little Endian
Address sizes:       36 bits physical, 48 bits virtual
CPU(s):              4
On-line CPU(s) list: 0-3
Thread(s) per core:  1
Core(s) per socket:  4
Socket(s):           1
NUMA node(s):        1
Vendor ID:           GenuineIntel
CPU family:          6
Model:               15
Model name:          Intel(R) Core(TM)2 Quad CPU    Q6600  @ 2.40GHz
Stepping:            11
CPU MHz:             1643.540
CPU max MHz:         2400.0000
CPU min MHz:         1600.0000
BogoMIPS:            4800.01
Virtualization:      VT-x
L1d cache:           32K
L1i cache:           32K
L2 cache:            4096K
NUMA node0 CPU(s):   0-3
Flags:               fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc arch_perfmon pebs bts rep_good nopl cpuid aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm lahf_lm pti tpr_shadow vnmi flexpriority dtherm