#863 Directory tree of the current and all subdirectories gets folded up if the directory gets reloaded

[Sworddragon]

I'm using PCManFM 1.2.0 and if the current directory is reloaded while the directory tree is enabled all elements there will be folded up. Normally I would expect that the state of the directory tree will be saved on a reload.

[Lonely Stranger]

This cannot be achieved with current implementation. I hope it can be done sometime later. Thank you very much.