[BUG] <2022-04-11 Mon 17:1-19:10> is wrongly parsed as a valid timestamp [9.5.3 (release_9.5.3-461-ga3dac4 @ /home/yantar92/.emacs.d/straight/build/org/)]

[Ihor Radchenko]

Hi,

Consider the following timestamp with a typo in starting minute:

<2022-04-11 Mon 17:1-19:10>

Running org-element-context yields a timestamp object with unexpected
properties:
(timestamp
 (:type active :raw-value "<2022-04-11 Mon 17:1-19:10>"
 :year-start 2022 :month-start 4 :day-start 11
 :hour-start nil :minute-start nil
 :year-end 2022 :month-end 4 :day-end 11
 :hour-end nil :minute-end nil
 :begin 1916 :end 1943 :post-blank 0))

Note that hour/minute values are nil.

Expected: The example timestamp is not parsed as a valid timestamp, but
rather considered a paragraph.

Best,
Ihor

Emacs  : GNU Emacs 29.0.50 (build 1, x86_64-pc-linux-gnu, cairo version 1.16.0)
 of 2022-04-24
Package: Org mode version 9.5.3 (release_9.5.3-461-ga3dac4 @ 
/home/yantar92/.emacs.d/straight/build/org/)