Make sure to reset the db id (in the sqlite index) otherwise

it will be reused in the target folder, on move, and overwrite the entry
for any existing entry at that row, thereby bringing the index out of sync
with reality.

svn path=/trunk/KDE/kdepim/; revision=812625

kmfoldermaildir.cpp

@@ -403,11 +403,10 @@ if( fileD0.open( QIODevice::WriteOnly ) ) {
     fileD0.close();  // If data is 0 we just create a zero length file.
 }
 */
-  KMFolder* msgParent;
   int idx(-1);
 
   // take message out of the folder it is currently in, if any
-  msgParent = aMsg->parent();
+  KMFolder* msgParent = aMsg->parent();
   if (msgParent)
   {
     if (msgParent==folder() && !kmkernel->folderIsDraftOrOutbox(folder()))
@@ -514,6 +513,9 @@ if( fileD0.open( QIODevice::WriteOnly ) ) {
   if (mAutoCreateIndex)
   {
 #ifdef KMAIL_SQLITE_INDEX
+    // reset the db id, in case we have one, we are about to change folders
+    // and can't reuse it there
+    aMsg->setDbId( 0 );
 #else
     assert(mIndexStream != 0);
     clearerr(mIndexStream);