There should be a way to consolidate answers into one or at least choose a set of answers as the accepted answer, as a question can sometimes have multiple answers.
For instance, if a question is asked for a list of software that can be used for the build process and many users suggest different software, there should be a way to consolidate these answers into one group. This prevents users from having to edit the question and consolidate the answers back into the question, or create their own answer with an amalgamation of the answers.
This would allow votes on answers to be credited back to the original answerer rather than to the person who created the consolidated answer, it would also prevent the person from having to group the answers together.
UI considerations do apply here as to what the best way is to group these answers together, as one can imagine that some of the answers in the group could possibly be fairly long, maybe a consolidation can come along with an edit to summarize the responses but still list and credit the answerers.
On further consideration of this, it may be best to let the consolidated answer automatically become community wiki, but let it automatically link/reference the answers you have chosen to consolidate, so that users can vote on those answers individually if they like. It also prevents votes on the consolidated answer from going to any particular individual.
An add-on to the above suggestion of making it community-wiki is to perhaps make it a special type of answer that combines the votes from all of the chosen combined individual answers, but does not have its own vote count per se. The votes seen on that question would merely be the combined amount. This allows votes to go to the respective answerers and still allows the person to choose an accepted answer.