"MESSAGE" in `acorn apps` continues to show "confirm upgrade message" even after confirming the upgrade.

[sangee2004]

acorn version v0.6.0-132-gdc73d55a+dc73d55a

Steps to reproduce the problem:

Deploy app in auto upgrade format with --notify-upgrade option.

acorn run --interval 15s --notify-upgrade -n mytestnew index.docker.io/sangeetha/myfirstacorn:v#.#.#

App gets deployed successfully:

 acorn apps                                                                                          
NAME        IMAGE                                           HEALTHY   UP-TO-DATE   CREATED   ENDPOINTS                                                         MESSAGE
mytestnew   index.docker.io/sangeetha/myfirstacorn:v8.0.0   1         1            8s ago    http://myweb1-mytestnew-63389b74.local.on-acorn.io => myweb1:80   OK

Make a new version available:

acorn build -t docker.io/sangeetha/myfirstacorn:v9.0.0 --push .  

There is notification message regarding new version:

acorn apps
NAME        IMAGE                                           HEALTHY   UP-TO-DATE   CREATED   ENDPOINTS                                                         MESSAGE
mytestnew   index.docker.io/sangeetha/myfirstacorn:v8.0.0   1         1            72s ago   http://myweb1-mytestnew-63389b74.local.on-acorn.io => myweb1:80   [image-pull: confirm upgrade to index.docker.io/sangeetha/myfirstacorn:v9.0.0]

Even after confirming the upgrade , ESSAGE" in acorn apps continues to show "confirm upgrade message"

acorn update --confirm-upgrade mytestnew
acorn apps mytestnew                    
NAME        IMAGE                                           HEALTHY   UP-TO-DATE   CREATED   ENDPOINTS                                                         MESSAGE
mytestnew   index.docker.io/sangeetha/myfirstacorn:v9.0.0   1         1            10m ago   http://myweb1-mytestnew-63389b74.local.on-acorn.io => myweb1:80   [image-pull: confirm upgrade to index.docker.io/sangeetha/myfirstacorn:v9.0.0]
sangeethahariharan@Sangeethas-MBP example1 %