I tried creating a changelog giving two SHA-1s as "from" and "to" references.
These two SHA-1s were from 2 recent builds on a specific branch,

Instead of giving me the list of changes on that branch between those two SHA-1s, it seemed to output a very long list of seemingly random changes, from 2012 to the current date. The dates were all mixed up.
What I was really looking for was the same list of changes that Jenkins so very nicely provides via the 'Changes' link, but output to a text file.