Not able to download rule template with spaces and & in file name from RHPAM/RHDM 7.4

Issue

• Not able to download rule template with spaces and & in file name from RHPAM/RHDM 7.4. Download fails with exception:

ERROR [org.uberfire.server.FileDownloadServlet] (default task-20) Failed to download a file.: org.uberfire.java.nio.file.NoSuchFileException
    at org.uberfire.java.nio.fs.jgit.JGitFileSystemProvider.readAttributes(JGitFileSystemProvider.java:2076)
    at org.uberfire.java.nio.file.Files.readAttributes(Files.java:638)
    at org.uberfire.java.nio.file.Files.size(Files.java:825)
    at org.uberfire.java.nio.file.Files.readAllBytes(Files.java:1186)
    at org.uberfire.io.impl.AbstractIOService.readAllBytes(AbstractIOService.java:450)
    at org.uberfire.server.FileDownloadServlet.doGet(FileDownloadServlet.java:61)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:686)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:791)
    at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:74)