Bug 1383 Error when consulting NS instance's topology

 * SOL006 Descriptor topology changes

Change-Id: I79afb00dfb54ce2c9dc02c0c4b7bbe435b07a915
Signed-off-by: Barath Kumar R <barath.r@tataelxsi.co.in>
diff --git a/src/services/AuthenticationService.ts b/src/services/AuthenticationService.ts
index 728d4ac..0621763 100644
--- a/src/services/AuthenticationService.ts
+++ b/src/services/AuthenticationService.ts
@@ -164,10 +164,12 @@
         this.loggedIn.next(false);
         const langCode: string = localStorage.getItem('languageCode');
         const redirecturl: string = isNullOrUndefined(localStorage.getItem('returnUrl')) ? '/' : localStorage.getItem('returnUrl');
+        const osmVersion: string = isNullOrUndefined(localStorage.getItem('osmVersion')) ? '' : localStorage.getItem('osmVersion');
         localStorage.clear();
         localStorage.setItem('languageCode', langCode);
         localStorage.setItem('returnUrl', redirecturl);
         localStorage.setItem('token_state', null);
+        localStorage.setItem('osmVersion', osmVersion);
         this.idle.stop();
         this.router.navigate(['login']).catch();
     }