The section wrappers can be marked as template-affected when the
previous or next section is transcluded, causing comments to be
unnecessarily uneditable. The new test case demonstrates this.
Depends-On: I03bc455d5484a6c51f3fa2397c64936b829fe7e3
Change-Id: I895a04990d79a3475d778b4fef054ea0bb076f0b