1. Apparatus, comprising: a processor; computer memory holding computer program instructions executed by the processor to perform a method of source code management, the method comprising: in response to receipt of information associated with a correction of a defect in a code snippet, the defect having been identified in a trouble ticket in a software system in which the defect arose, automatically scanning a codebase to identify one or more instances of the code snippet; and for each of the one or more instances of the code snippet identified by the scan, tagging the instance for subsequent correction.