Here's the bug report for that issue: https://bugs.launchpad.net/ubuntu-calculator-app/+bug/1522161
Furthermore, I filed the following one: https://bugs.launchpad.net/ubuntu-calculator-app/+bug/1522162
Here's the bug report for that issue: https:/ /bugs.launchpad .net/ubuntu- calculator- app/+bug/ 1522161
Furthermore, I filed the following one: https:/ /bugs.launchpad .net/ubuntu- calculator- app/+bug/ 1522162