sorry for my limited english first. I have downloaded the source of thunar and exo from git, and tried to use thunar to access network.it seems not very stable.
 
  step 1: use thunar access network ,for example "sftp://192.168.1.200/".
  step 2: edit text file in the host of "sftp://192.168.1.200/".
  step 3: save the text file.
  step 4: repeat step 2 and 3 several times, until the text file icon be come translucent.
  step 5: press F5, then Thunar crash.(thunar cannot auto refresh here, maybe it is another bug?)