Restore vbuf value after modification
@@ -873,6 +873,7 @@ void mbedtls_ecp_group_metadata( int id, int bit_size, int crv_type,
TEST_EQUAL( mbedtls_ecp_tls_read_group_id( &read_g_id, &vbuf, olen ),
0 );
TEST_EQUAL( read_g_id, id );
+ vbuf = buf;
TEST_EQUAL( mbedtls_ecp_tls_read_group( &grp_read, &vbuf, olen ),
0 );
TEST_EQUAL( grp_read.id, id );
