Etag doesn't change

[thisIsTheFoxe]

locking/unlocking a file must change its eTag (and get propagated up to root), as otherwise clients will not reload the folder content and thus are not aware of locked state

Originally posted by @tobiasKaminsky in #24 (comment)

I found this while debugging. I assume currently locking a file doesn't change its etag?

(lldb) p metadata.fileName
(String) $R0 = "index.html"
(lldb) p metadata.fileName
(String) $R1 = "scan 22-03-15 10-37-49.pdf"
(lldb) p metadata.etag
(String) $R2 = "42e56559fc5322e74d67f60efe8198ba"
(lldb) p result.etag
(String) $R3 = "42e56559fc5322e74d67f60efe8198ba"
(lldb) p result.lock
(Bool) $R4 = false
(lldb) p metadata.lock
(Bool) $R5 = true

[juliusknorr]

Yes, there is currently no ETag change, but should be rather straight forward to propagate a change on lock/unlock. I'll have a look.

[juliusknorr]

Implemented with 3ee9e47 in #54