To close multiple issues, preface each issue reference with one of the
above keywords. You must use the keyword before each issue you
reference for the keyword to work.
For example, This closes #34, closes #23, and closes
example_user/example_repo#42 would close issues #34 and #23 in the
same repository, and issue #42 in the "example_user/example_repo"
repository.
It is also possible to close several issues in the same commit: just repeat several time the pattern to close issues. For example, the following commit message: add new quick sort algorithm, fixes #4, resolve #6, closed #12 would close, the issues 4, 6 & 12 of the project on which the commit would occur.
You can link a pull request to an issue by using a supported keyword
in the pull request's description or in a commit message (please note
that the pull request must be on the default branch).