> a/checkLibs
> b/checkLibs

> b/run
$ exists s2.13.12.txt
$ delete s2.13.12.txt

# don't crash when expanding the macro
> b3/run
$ exists s2.13.14.txt
$ delete s2.13.14.txt

> b3/checkScala

# without the default `csrSameVersions`, scala-reflect in b stays at 2.13.11
> set b/csrSameVersions := Nil
> b/update
-> b/checkLibs

> ak/checkLibs
