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Problem report
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    Resolution: Fixed
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Trivial
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    4.0.3rc1, 4.2.0alpha2
 
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        Sprint 47, Dec 2018, Sprint 48, Jan 2019, Sprint 49 (Feb 2019), Sprint 50 (Mar 2019)
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        0.5
 
Steps to reproduce:
- Double click on classic graph widget to zoom out
 - Edit dashboard
 - Double click on classic graph widget
 
Result: error in console "Uncaught TypeError: Cannot set property 'height' of undefined" and nothing happen
Expected: graph page is open
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And classic graph height isn't match widget height, extra space at the bottom
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