I'm trying to apply this patch in 2.7.0-rc01 and it fails. I can see that is fixed in 2.7.0, but I'm not sure if it's added in rc01.

Could somebody tell me if is necessary in rc01, please?

I paste the output:

csie@csie-server:/apps/sakai/sakai-2.7.0-rc01/web$ patch -p0 --dry-run < parche_empty_title_SAK-17863.patch
patching file news-tool/tool/src/java/org/sakaiproject/news/tool/NewsAction.java
Reversed (or previously applied) patch detected! Assume -R? [n] n
Apply anyway? [n] n
Skipping patch.
4 out of 4 hunks ignored – saving rejects to file news-tool/tool/src/java/org/sakaiproject/news/tool/NewsAction.java.rej
patching file web-tool/tool/src/java/org/sakaiproject/web/tool/IFrameAction.java
Hunk #1 succeeded at 31 with fuzz 2 (offset 4 lines).
Hunk #2 FAILED at 82.
Hunk #3 FAILED at 896.
Hunk #4 succeeded at 822 (offset -90 lines).
Hunk #5 FAILED at 857.
Hunk #6 FAILED at 864.
Hunk #7 FAILED at 909.
5 out of 7 hunks FAILED – saving rejects to file web-tool/tool/src/java/org/sakaiproject/web/tool/IFrameAction.java.rej

2.7.x, r74966.

There were two problems:
1) The iframe & news page/tool titles were being over-ridden by the "localized" tool title, because setCustomTitle() was not set
2) The kernel needed to respect the getCustomTitle() flag for tool titles as well as page titles

The first problem is fixed with this JIRA, the second problem is fixed with https://sakaiproject.atlassian.net/browse/KNL-447#icft=KNL-447

Send a note to Beth for comment on related SAK-8908.

I can confirm that the Web Content tool title cannot be updated in Sakai 2.7 b4