error: unknown `elif` keyword; did you mean `else if`?
       problems parsing template source at row 1, column 16 near:
       "elif false %}{% endif %}"
 --> tests/ui/elif.rs:3:10
  |
3 | #[derive(Template)]
  |          ^^^^^^^^
  |
  = note: this error originates in the derive macro `Template` (in Nightly builds, run with -Z macro-backtrace for more info)