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issue_template.md

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-**Description**:
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-**Current behaviour**: Tell us what happens
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-**Expected behaviour**: Tell us what should happen instead
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-**Steps to reproduce the problem**:
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-**TC hash/commit**:  
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-**TDB version**:  
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-**Operating system**:  
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-[//]: # (This template is for problem reports, for other type of reports edit it accordingly)
-[//]: # (If this is a crash report, include the crashlog with https://gist.github.com/)