Add a protection for Jira issue #ROOT-5900 (histogram integral is modified after rebinning)
Add a protection for Jira issue #ROOT-5900 (histogram integral is modified after rebinning)

Dr15Jones/root,kirbyherm/root-r-tools,Dr15Jones/root,kirbyherm/root-r-tools,kirbyherm/root-r-tools,kirbyherm/root-r-tools,tc3t/qoot,kirbyherm/root-r-tools,tc3t/qoot,Dr15Jones/root,tc3t/qoot,tc3t/qoot,tc3t/qoot,tc3t/qoot,kirbyherm/root-r-tools,Dr15Jones/root,tc3t/qoot,Dr15Jones/root,kirbyherm/root-r-tools,tc3t/qoot,Dr15Jones/root,tc3t/qoot,Dr15Jones/root,tc3t/qoot