Bug 127769

Version:           1.5.2 (using KDE KDE 3.5.2)
Installed from:    Compiled From Sources
Compiler:          g++ (GCC) 3.3.5 
OS:                Linux

Changing the order of can sometimes take too much time (from Class Properties -> Operations). If this is the case, then clicking an arrow (either up or down) is several times might cause Umbrello to crash.

Crash report:
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Using host libthread_db library "/lib/libthread_db.so.1".
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`system-supplied DSO at 0xffffe000' has disappeared; keeping its symbols.
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[Thread debugging using libthread_db enabled]
[New Thread 16384 (LWP 15121)]
[New Thread 32769 (LWP 15254)]
0x41656ea6 in nanosleep () from /lib/libc.so.6
#0  0x41656ea6 in nanosleep () from /lib/libc.so.6
#1  0x00000001 in ?? ()
#2  0x41656cef in sleep () from /lib/libc.so.6
#3  0x408ece93 in KCrash::startDrKonqi () from /usr/kde/3.5/lib/libkdecore.so.4
#4  0x0000000c in ?? ()
#5  0x00000010 in ?? ()
#6  0x416e59c0 in __after_morecore_hook () from /lib/libc.so.6
#7  0xbfd73b30 in ?? ()
#8  0x00000011 in ?? ()
#9  0x00000003 in ?? ()
#10 0x00000004 in ?? ()
#11 0x00000004 in ?? ()
#12 0x0000401b in ?? ()
#13 0x6f6b7264 in ?? ()
#14 0x0069716e in ?? ()
#15 0x7369642d in ?? ()
#16 0x79616c70 in ?? ()
#17 0x2e303a00 in ?? ()
#18 0x2d2d0030 in ?? ()
#19 0x6e707061 in ?? ()
#20 0x00656d61 in ?? ()
#21 0x72626d75 in ?? ()
#22 0x6f6c6c65 in ?? ()
#23 0x732d2d00 in ?? ()
#24 0x616e6769 in ?? ()
#25 0x3131006c in ?? ()
#26 0x702d2d00 in ?? ()
#27 0x31006469 in ?? ()
#28 0x31323135 in ?? ()
#29 0x612d2d00 in ?? ()
#30 0x65767070 in ?? ()
#31 0x6f697372 in ?? ()
#32 0x2e31006e in ?? ()
#33 0x00322e35 in ?? ()
#34 0x72702d2d in ?? ()
#35 0x6172676f in ?? ()
#36 0x6d616e6d in ?? ()
#37 0x6d550065 in ?? ()
#38 0x6c657262 in ?? ()
#39 0x55206f6c in ?? ()
#40 0x4d204c4d in ?? ()
#41 0x6c65646f in ?? ()
#42 0x0072656c in ?? ()
#43 0x75622d2d in ?? ()
#44 0x64646167 in ?? ()
#45 0x73736572 in ?? ()
#46 0x62757300 in ?? ()
#47 0x4074696d in ?? () from /usr/kde/3.5/lib/libkdeui.so.4
#48 0x73677562 in ?? ()
#49 0x65646b2e in ?? ()
#50 0x67726f2e in ?? ()
#51 0x732d2d00 in ?? ()
#52 0x74726174 in ?? ()
#53 0x64697075 in ?? ()
#54 0x61686b00 in ?? ()
#55 0x3b697269 in ?? ()
#56 0x38343131 in ?? ()
#57 0x34363132 in ?? ()
#58 0x343b3935 in ?? ()
#59 0x38383535 in ?? ()
#60 0x36353b38 in ?? ()
#61 0x545f3835 in ?? ()
#62 0x33454d49 in ?? ()
#63 0x39333333 in ?? ()
#64 0x00003439 in ?? ()
#65 0x00000000 in ?? ()
#66 0x41000000 in QGList::~QGList () from /usr/qt/3/lib/libqt-mt.so.3