resetting the elapsed time also resets ETA

src/progress_bar.rs

@@ -307,7 +307,7 @@ impl ProgressBar {
         self.state().reset(Instant::now(), Reset::Eta);
     }
 
-    /// Resets elapsed time
+    /// Resets elapsed time and the ETA calculation
     pub fn reset_elapsed(&self) {
         self.state().reset(Instant::now(), Reset::Elapsed);
     }

src/state.rs

@@ -69,9 +69,9 @@ impl BarState {
     }
 
     pub(crate) fn reset(&mut self, now: Instant, mode: Reset) {
-        if let Reset::Eta | Reset::All = mode {
-            self.state.est.reset(now);
-        }
+        // Always reset the estimator; this is the only reset that will occur if mode is
+        // `Reset::Eta`.
+        self.state.est.reset(now);
 
         if let Reset::Elapsed | Reset::All = mode {
             self.state.started = now;