LMS-2887 bug fixed which prevents from automatically overwriting AS core-plugins on unzip

SVN: 24951

openbis/dist/server/install.sh

@@ -101,7 +101,7 @@ echo "Make the configuration checksum file available : " $checksum_file
 test -f "$checksum_file" && cp -p "$checksum_file" "$jetty_folder"
 
 echo installing core-plugins
-unzip -qu "$installation_folder/core-plugins.zip" -d "$server_folder/.."
+unzip -quo "$installation_folder/core-plugins.zip" -d "$server_folder/.."
 
 # Move config files to etc and create symlinks.
 mv "$war_classes/etc/log.xml" "$JETTY_ETC_DIR"