[gnome-sound-recorder] recorder: copy the peaks to the recording

[Bilal Elmoussaoui <bilelmoussaoui src gnome org>]

commit 0ce49c7fa3e7aeee7a3f4f8c2a19187cf7bde0b9
Author: Bilal Elmoussaoui <bil elmoussaoui gmail com>
Date:   Sun Aug 16 15:20:14 2020 +0200

    recorder: copy the peaks to the recording
    
    this should fix an issue when the file is still being written & the recorder peaks gets cleaned.

 src/recorder.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/recorder.js b/src/recorder.js
index 7cbb1c0..bfaaccb 100644
--- a/src/recorder.js
+++ b/src/recorder.js
@@ -157,8 +157,8 @@ var Recorder = new GObject.registerClass({
 
 
         if (this.file && this.file.query_exists(null) && this._peaks.length > 0) {
-            const recording = new Recording(this.file);
-            recording.peaks = this._peaks;
+            let recording = new Recording(this.file);
+            recording.peaks = this._peaks.slice();
             this._peaks.length = 0;
             return recording;
         }