nautilus crashed with SIGABRT in g_string_append_c_inline()

[Andrei Avram]

I had two tabs open to the same FTP connection (right-clicked the existing connection in "Servers" in Nautilus and selected Open in new tab).

I navigated to and copied (Ctrl + C) a folder in one tab, then switched tabs (with mouse click) and pasted (Ctrl + V) my folder in the other tab. The progress dialog popped up and it started copying, but after a time I got a dialog that Nautilus could not copy any of the files. I chose to skip them. Nautilus crashed after navigating to the one, empty folder the copy operation created.

ProblemType: Crash
DistroRelease: Ubuntu 14.10
Package: nautilus 1:3.12.2-0ubuntu1~trusty3 [origin: LP-PPA-gnome3-team-gnome3]
ProcVersionSignature: Ubuntu 3.16.0-23.31-generic 3.16.4
Uname: Linux 3.16.0-23-generic x86_64
ApportVersion: 2.14.7-0ubuntu8
Architecture: amd64
CurrentDesktop: Unity
Date: Wed Oct 29 17:39:53 2014
ExecutablePath: /usr/bin/nautilus
GsettingsChanges:

InstallationDate: Installed on 2014-08-04 (86 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
ProcCmdline: nautilus -n
Signal: 6
SourcePackage: nautilus
StacktraceTop:
 g_assertion_message () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 g_assertion_message_expr () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 ?? ()
 ?? ()
 ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
Title: nautilus crashed with SIGABRT in g_assertion_message()
UpgradeStatus: Upgraded to utopic on 2014-10-28 (0 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Ubuntu GNOME (ug-bot)]

StacktraceTop:
 g_string_append_c_inline (c=-125 '\203', gstring=0x2108600) at /build/buildd/glib2.0-2.40.2/./glib/gstring.h:170
 g_string_append_uri_escaped (string=0x2108600, unescaped=0x7f230ba3b420 <test_nonfatal_assertions> "\320B\001\002", reserved_chars_allowed=0x7f22d80042c0 "\320&d\001", allow_utf8=851397440) at /build/buildd/glib2.0-2.40.2/./glib/gstring.c:566
 ?? ()
 ?? ()
 g_string_append_uri_escaped (string=0x505070, unescaped=0x8348717c53a4dc00 <error: Cannot access memory at address 0x8348717c53a4dc00>, reserved_chars_allowed=<optimized out>, allow_utf8=<optimized out>) at /build/buildd/glib2.0-2.40.2/./glib/gstring.c:551