Journal field display size limit is not respected when setting the system properties:
The documentation for these properties is the following:
Steps to Reproduce
1. Open the system properties table: sys_properties.list
2. Add the documented properties glide.max_journal_list_size and glide.shortened_journal_length
3. Alter the properties values glide.max_journal_list_size = 1 or glide.shortened_journal_length = 10
4. Navigate to or create an incident or task record with large journal entries:
Note that these entries are unchanged, showing entries larger than one 1MB and more than 10 chars.
After carefully considering the severity and frequency of the issue, and risk of attempting a fix, it has been decided to not address this issue in any current or future releases. We do not make this decision lightly, and we apologize for any inconvenience.
The Activity Stream does not contain any code to read the above properties in the current versions. Only glide.max_activity_size is used to set the max content shown.
Related Problem: PRB1316244