Merge pull request #4360

7a76354c wallet2: import_multisig forward refresh exception (naughtyfox)

src/wallet/wallet2.cpp

@@ -10830,7 +10830,12 @@ size_t wallet2::import_multisig(std::vector<cryptonote::blobdata> blobs)
 
     refresh(false);
   }
-  catch (...) {}
+  catch (...)
+  {
+    m_multisig_rescan_info = NULL;
+    m_multisig_rescan_k = NULL;
+    throw;
+  }
   m_multisig_rescan_info = NULL;
   m_multisig_rescan_k = NULL;