Replaces #1783, should help with issues #1768, #1779 and #1784.
I decided to revert PR #1754 (Improve handling of FoldersTree manual sort issues) and implement a better handling of siblings reported as missing in -loadTree:rootNode:
As in #1783, check -setParent:forFolder: and -setNextSibling:folderFromID:forFolder: success or failure before moving a tree node.
Replaces #1783, should help with issues #1768, #1779 and #1784.
I decided to revert PR #1754 (Improve handling of FoldersTree manual sort issues) and implement a better handling of siblings reported as missing in
-loadTree:rootNode:
As in #1783, check
-setParent:forFolder:
and-setNextSibling:folderFromID:forFolder:
success or failure before moving a tree node.