applying the same code over a coded segment creates code duplications

[hlageek]

• this behavior occurs only when the new segment starts before and ends after an already coded segment, in case of a partial overlap, the code gets extended rather than duplicated

Expected behavior:

• previous code is extended rather than duplicated OR
• action is not allowed and user is requested to remove the existing code before applying the same code again

Available workaround:

• remove existing code and apply it again in the desired dimensions

[hlageek]

Fixed by https://github.com/RE-QDA/requal/pull/73