metahost: fix caching issues in meta annotations
metahost: fix caching issues in meta annotations

wip #SCL-12110

jastice/intellij-scala,loskutov/intellij-scala,JetBrains/intellij-scala,triplequote/intellij-scala,loskutov/intellij-scala,JetBrains/intellij-scala,jastice/intellij-scala,jastice/intellij-scala,triplequote/intellij-scala,jastice/intellij-scala,loskutov/intellij-scala,triplequote/intellij-scala