Event "OCP\Share::post_unshare" misses owner of shares for reshares

[nickvergessen]

1. Create a folder "FolderName" as UserA
2. Share FolderName as UserA with UserB
3. Reshare FolderName as UserB with UserC
4. Reshare FolderName as UserC with public link
5. Unshare FolderName as UserA

Expected deletedShares in event:

    array (size=3)
      0 => 
        array (size=6)
          'id' => string '29' (length=2)
          'shareWith' => null
          'itemTarget' => string '/438' (length=4)
          'itemType' => string 'folder' (length=6)
          'shareType' => int 3
          'uidOwner' => string 'UserB' (length=5)
          'fileTarget' => string '/FolderName' (length=11)
      1 => 
        array (size=6)
          'id' => string '31' (length=2)
          'shareWith' => string 'UserC' (length=5)
          'itemTarget' => string '/438' (length=4)
          'itemType' => string 'folder' (length=6)
          'shareType' => int 0
          'uidOwner' => string 'UserB' (length=5)
          'fileTarget' => string '/FolderName' (length=11)
      2 => 
        array (size=9)
          'id' => int 28
          'itemType' => string 'folder' (length=6)
          'itemSource' => string '438' (length=3)
          'shareType' => int 0
          'shareWith' => string 'UserB' (length=5)
          'itemParent' => null
          'uidOwner' => string 'UserA' (length=5)
          'fileSource' => int 438
          'fileTarget' => string '/FolderName' (length=11)

Actual:

    array (size=3)
      0 => 
        array (size=6)
          'id' => string '29' (length=2)
          'shareWith' => null
          'itemTarget' => string '/438' (length=4)
          'itemType' => string 'folder' (length=6)
          'shareType' => int 3
          'fileTarget' => string '/FolderName' (length=11)
      1 => 
        array (size=6)
          'id' => string '31' (length=2)
          'shareWith' => string 'UserC' (length=5)
          'itemTarget' => string '/438' (length=4)
          'itemType' => string 'folder' (length=6)
          'shareType' => int 0
          'fileTarget' => string '/FolderName' (length=11)
      2 => 
        array (size=9)
          'id' => int 28
          'itemType' => string 'folder' (length=6)
          'itemSource' => string '438' (length=3)
          'shareType' => int 0
          'shareWith' => string 'UserB' (length=5)
          'itemParent' => null
          'uidOwner' => string 'UserA' (length=5)
          'fileSource' => int 438
          'fileTarget' => string '/FolderName' (length=11)

Without this information other apps (such as the activity app) can not use the ownerUid to notify (or whatever) the right users.

[MorrisJobke]

cc @schiesbn @rullzer

[nickvergessen]

@rullzer can this be covered by sharing 2.0 please?
If so please assign yourself and set the milestone

[lock]

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