bug/incorrect-undelete-count

[segullshairbutt]

It was showing the incorrect number of undelete model objects.
The reason was an old reference to queryset was kept and it was assumed that on applying filter to old queryset will result in old data while in theory it must be 0 if undelete operation was successful.
Following is the outline of changes:

1. changed count is taken from queryset method instead of counting it again from filter
2. removed the unused original_quyerset reference

[coveralls]

Coverage decreased (-0.004%) to 97.109% when pulling 4765f9b on segullshairbutt:bug/incorrect-undelete-count into deb2300 on makinacorpus:master.

[Gagaro]

Thanks for the PR 👍 .