The reason you see this message is because ContinuousTests counts a lot more than the test coverage when handling. With the fields that you see there, you can get either green, yellow, or red. Green means that modifying this code is pretty safe. Yellow means that there is some risk of changing this part of the code. Red means that if you change this code, you are on your own. There is a good chance that something will break if it is changed. If you hover over an icon, you can see some statistics about the risk. If you right-click and select "ContinuousTests-> Get Affected Graph", you will see a link graph for this piece of code.
When the message “there will be dragons” is displayed, it means that the code you are looking at refers to many places in the code, and no tests seem to be related to it or that it refers to it. Therefore, by changing this code, you run the risk of not only violating this method, but also breaking everything that indirectly uses it.
Hope this explains.
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