Comment 138 for bug 106737

(In reply to Thomas D. (currently busy elsewhere; needinfo?me) from comment #131)
> The only scenario where this might fail are extra long nested folder names
> at the limit, where we might fail to create the tmp target folder if the tmp
> path gets too long or such.
To avoid this, you could just try to rename to fo1, fo2, ... foa, fob, ... until success. tmp may be already in use.

> because even some servers don't accept changing capitalization only, so we'd elegantly trick those.
+1