Bug #67937 Error while altering schema collation
Submitted: 18 Dec 2012 13:46 Modified: 28 Jan 2013 13:28
Reporter: Cristiano Toncelli Email Updates:
Status: No Feedback Impact on me:
None 
Category:MySQL Workbench: SQL Editor Severity:S3 (Non-critical)
Version:5.2.44 OS:Windows (Microsoft Windows 7 Service Pack 1 (build 7601), 32-bit)
Assigned to: CPU Architecture:Any
Tags: WBBugReporter

[18 Dec 2012 13:46] Cristiano Toncelli
Description:
Error received after "Alter Schema" defining collation to "Ascii - default".

----- Developer Notes -----

MySQL Workbench CE for Windows version 5.2.44  revision 9933
Configuration Directory: C:\Users\toncelli\AppData\Roaming\MySQL\Workbench
Data Directory: C:\Program Files\MySQL\MySQL Workbench 5.2 CE
Cairo Version: 1.8.8
OS: Microsoft Windows 7  Service Pack 1 (build 7601), 32-bit
CPU: 4x Intel(R) Core(TM) i3-2310M CPU @ 2.10GHz, 2.9 GiB RAM
Active video adapter (0): Intel(R) HD Graphics Family
Installed video RAM: 1283 MB
Current video mode: 1680 x 1050 x 4294967296 colori
Used bit depth: 32
Driver version: 8.15.10.2291
Installed display drivers: igdumdx32.dll,igd10umd32.dll,igd10umd32.dll
Current user language: Italiano (Italia)

Exception = System.InvalidOperationException
Message = Collection was modified; enumeration operation may not execute.
FullText = System.InvalidOperationException: Collection was modified; enumeration operation may not execute.
   at System.ThrowHelper.ThrowInvalidOperationException(ExceptionResource resource)
   at System.Collections.Generic.List`1.Enumerator.MoveNextRare()
   at System.Collections.Generic.List`1.Enumerator.MoveNext()
   at MySQL.Controls.FlatTabControl.BusyAnimationStep(Object sender, EventArgs args)
   at System.Drawing.ImageAnimator.ImageInfo.OnFrameChanged(EventArgs e)
   at System.Drawing.ImageAnimator.ImageInfo.set_Frame(Int32 value)
   at System.Drawing.ImageAnimator.AnimateImages50ms()
   at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   at System.Threading.ThreadHelper.ThreadStart()

How to repeat:
I cannot say exactly
[28 Dec 2012 13:28] MySQL Verification Team
Please try version 5.2.45. Thanks.
[29 Jan 2013 1:00] Bugs System
No feedback was provided for this bug for over a month, so it is
being suspended automatically. If you are able to provide the
information that was originally requested, please do so and change
the status of the bug back to "Open".