added comment

Signed-off-by: munishchouhan <[email protected]>

src/main/groovy/io/seqera/wave/controller/ViewController.groovy

@@ -236,6 +236,13 @@ class ViewController {
             def condaLock = buildLogService.fetchCondaLockString(result.buildId)
             def buildId = result.buildId
 
+            /*
+            When a container image is cached, dockerfile does not get executed.
+            In that case condalock file will contain "cat environment.lock" because its not been executed.
+            So wave will check the previous builds of that container image
+            and render the condalock file from latest successful build
+            and replace with the current build's condalock file.
+            */
             if ( condaLock && condaLock.contains('cat environment.lock')) {
                 condaLock = null //if there is no conda lock file, don't show the conda lock data
                 def builds = persistenceService.allBuilds(result.buildId.split('-')[1].split('_')[0])