Simple solution
Thank you lady oscar
4165 - Fix spurious error message when importing for oneself while having archivist privileges
Issue 4141: More fixes
4165 - Use present? instead of !blank? as negatives are harder to parse for human readers
Issue 4141: Make it go away
3742 Expire the cache key on chapters
Merge pull request #1925 from LadyOscar/issue_4141

Issue 4141: More fixes for tag_wranglings page
3742 move v2 to the end
Merge pull request #1928 from sarken/issue_3742

3742 Expire the cache key on chapters
Merge pull request #1924 from ariana-paris/4165-Archivist-imports

4165 - Fix spurious error message when importing for oneself while having archivist privileges
Merge pull request #1923 from zz9pzza/issue_4073

Issue 4073 Better error message when changing username