[6.x] [ML] Fixing job cloning when it has an unknown created_by value (#29175)#29216

Merged

jgowdyelastic merged 1 commit intoelastic:6.xfrom jgowdyelastic:backport/6.x/pr-29175

Jan 24, 2019

+2

Commits on Jan 23, 2019

[ML] Fixing job cloning when it has an unknown created_by value (elastic#29175 )
jgowdyelastic
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