#496 - fix GetFolderListUseCase.kt

Author: sentinelweb

shared/src/commonMain/kotlin/uk/co/sentinelweb/cuer/app/usecase/GetFolderListUseCase.kt

@@ -36,6 +36,7 @@ class GetFolderListUseCase(
         } else {
             folderPath
                 .let { fullTruncatedPathMapper.truncatedToFullFolderPath(it) }
+                ?.takeIf { it.indexOf(folderPath) > 0 } // enforces path beginning with a root on input
                 ?.takeIf { fullTruncatedPathMapper.checkFolderPathIsInAllowedSet(it) }
                 ?.let { AFile(it) }
                 ?.takeIf { fileOperations.exists(it) }