[7.x] fix 400 error on initial signals search (#70618)#70662

Merged

yctercero merged 1 commit intoelastic:7.xfrom yctercero:backport/7.x/pr-70618

Jul 3, 2020

+2-1

Commits on Jul 2, 2020

fix 400 error on initial signals search (elastic#70618 )
yctercero
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