Need to rename NOTICE file before putting into an APK's META-INF?

In a recent post I received help how to copy files into the META-INF directory of an APK (Add generated file to META-INF). For instance, I can copy a LICENSE file into the APK. Strange thing I came across, however, is that if I try this same solution to copy NOTICE into META-INF, the file doesn’t show up. However, if I rename the file during the copy (for example, to NOTICE_INFO) then it does show up in the META-INF. Seems like something is going on behind the scenes, does anyone know?