`ipm update` cannot be directed to update just 1 IP (despite doco/help text)

[amm-efabless]

ipm update --help says: "Check for new versions of all installed IPs or a specific IP" but it doesn't explain how to do just 1 specific IP. I tried ipm update --ip-root ip/EF_SRAM_1024x32 (as --ip-root seems to be for this purpose, as distinct from --ipm-root) but while this did update that IP, it then looks like it tried to update my other IPs at the same time (which incidentally failed because they were old ones no longer in the library).

From a quick glance at the code, it might not have a way for the user to single out just 1 IP to update.