From cb95f576a52bcede1f6849e33c10a42bb52eea3d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Damir=20Jeli=C4=87?= <poljar@termina.org.uk>
Date: Thu, 29 Oct 2020 15:37:29 +0100
Subject: [PATCH] crypto: Clear out the signatures when signing a device.

This avoids re-uploading all the existing signatures.
---
 matrix_sdk_crypto/src/olm/signing/mod.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/matrix_sdk_crypto/src/olm/signing/mod.rs b/matrix_sdk_crypto/src/olm/signing/mod.rs
index 99bfcae9..a387768c 100644
--- a/matrix_sdk_crypto/src/olm/signing/mod.rs
+++ b/matrix_sdk_crypto/src/olm/signing/mod.rs
@@ -122,12 +122,12 @@ impl PrivateCrossSigningIdentity {
     }
 
     /// Sign the given device keys with this identity.
-    #[allow(dead_code)]
     pub(crate) async fn sign_device(
         &self,
         device: &ReadOnlyDevice,
     ) -> Result<SignatureUploadRequest, SignatureError> {
-        let device_keys = device.as_device_keys();
+        let mut device_keys = device.as_device_keys();
+        device_keys.signatures.clear();
         self.sign_device_keys(device_keys).await
     }