Graph templates where introduced in git between 1.2.22 and 1.2.23 as part of issue #4907 as commit 2278415
It is still mentioned in the CHANGELOG for 1.2.23

However just before 1.2.23 it was silently dropped (by mistake?) as part of commit 7701a6b

Please verify if they where supposed to be shipped, and in that case, reintroduce them, or maybe mention in the CHANGELOG why they were dropped.