change the logic of the 'by-owner' request

[wkcaeser]

Fixes #1853

[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (master@b76adf9). Click here to learn what that means.
The diff coverage is 42.85%.

@@            Coverage Diff            @@
##             master    #1855   +/-   ##
=========================================
  Coverage          ?   49.83%           
  Complexity        ?     1916           
=========================================
  Files             ?      394           
  Lines             ?    12078           
  Branches          ?     1227           
=========================================
  Hits              ?     6019           
  Misses            ?     5608           
  Partials          ?      451

Impacted Files	Coverage Δ	Complexity Δ
...mework/apollo/portal/controller/AppController.java	25.58% <0%> (ø)	3 <0> (?)
.../ctrip/framework/apollo/portal/util/RoleUtils.java	66.66% <50%> (ø)	13 <1> (?)

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[coveralls]

Coverage increased (+0.03%) to 52.174% when pulling 81466a2 on wkcaeser:role into 5d15562 on ctripcorp:master.

[nobodyiam]

This may be a good idea.