MDEV-29282 atomic.rename_trigger fails occasionally

This reverts part of commit 212994f7
(MDEV-28974) and implements a better fix that works in that special case
while avoiding other failures.

fil_name_process(): Do not rename the tablespace in deferred_spaces;
it already contains the latest name for the space id.

deferred_spaces::create(): In mariadb-backup --prepare,
replace absolute data directory file path with short name
relative to the backup directory and store it as filename while
deferring tablespace file creation.

mysql-test/suite/atomic/disabled.def

-##############################################################################
-#
-#  List the test cases that are to be disabled temporarily.
-#
-#  Separate the test case name and the comment with ':'.
-#
-#    <testcasename> : BUG#<xxxx> <date disabled> <disabler> <comment>
-#
-#  Do not use any TAB characters for whitespace.
-#
-##############################################################################
-
-rename_trigger          : MDEV-29282 atomic.rename_trigger fails occasionly

storage/innobase/log/log0recv.cc

@@ -829,7 +829,29 @@ static struct
     fil_space_t *space= fil_space_t::create(it->first, flags,
                                             FIL_TYPE_TABLESPACE, crypt_data);
     ut_ad(space);
-    space->add(name.c_str(), OS_FILE_CLOSED, size, false, false);
+    const char *filename= name.c_str();
+    if (srv_operation == SRV_OPERATION_RESTORE)
+    {
+      const char* tbl_name = strrchr(filename, '/');
+#ifdef _WIN32
+      if (const char *last = strrchr(filename, '\\'))
+      {
+        if (last > tbl_name)
+          tbl_name = last;
+      }
+#endif
+      if (tbl_name)
+      {
+        while (--tbl_name > filename &&
+#ifdef _WIN32
+               *tbl_name != '\\' &&
+#endif
+               *tbl_name != '/');
+        if (tbl_name > filename)
+          filename= tbl_name + 1;
+      }
+    }
+    space->add(filename, OS_FILE_CLOSED, size, false, false);
     space->recv_size= it->second.size;
     space->size_in_header= size;
     return space;
@@ -1227,9 +1249,6 @@ static void fil_name_process(const char *name, ulint len, uint32_t space_id,
 			d->deleted = true;
 			goto got_deleted;
 		}
-		if (ftype == FILE_RENAME) {
-			d->file_name= fname.name;
-		}
 		goto reload;
 	}