fix template0 backup. Always copy all files of this database

Author: alubennikova

src/backup.c

@@ -2317,6 +2317,16 @@ make_pagemap_from_ptrack(parray *files)
 		 */
 		if (file->is_database)
 		{
+			char *filename = strrchr(file->path, '/');
+
+			Assert(filename != NULL);
+			filename++;
+
+			elog(ERROR, "filename %s", filename);
+			/* always backup all files from template0 */
+			if (strcmp(filename, "template0") == 0)
+					continue;
+
 			/*
 			 * The function pg_ptrack_get_and_clear_db returns true
 			 * if there was a ptrack_init file

src/dir.c

@@ -384,6 +384,7 @@ dir_list_file_internal(parray *files, const char *root, bool exclude,
 	if (add_root)
 	{
 		/* Skip files */
+		/* TODO Consider moving this check to parse_backup_filelist_filenames */
 		if (!S_ISDIR(file->mode) && exclude)
 		{
 			char	    *file_name;