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I have searched open and closed issues for duplicates
I am submitting a bug report for existing functionality that does not work as intended
This isn't a feature request or a discussion topic
Bug description
On specific iPhone models entering the string ¯\_(ツ)_/¯ in a Signal conversation causes it to multiply by four once sent, and then the message to replicate itself by four each time the conversation is re-opened.
Steps to reproduce
Tested on the following models, all running iOS 14:
iPhone 8 and 8plus
iPhone 7
iPhone 6s
known not to affect iPhone 11 (all models), iPhone SE (2020).
Open Signal
Open a Signal conversation
Enter the text ¯\_(ツ)_/¯
Send the text
The displayed text in the conversation is expanded by repeating the above text four times
(optional) exit the conversation
(optional) re-enter the conversation
(optional) the displayed text above is multiplied by four again (i.e. sixteen entries)
each time the above steps are repeated the display expands until opening the conversation takes an extremely long time
deleting the message fixes the issue.
The second screenshot shows that it appears to be related to a particular set of Unicode, possibly linked to the parenthesis.
the ¯\_(ツ)_/¯ is a keyboard expansion on my phone but it was tested by doing a c&p from iMessage on a separate phone and the result was the same,
iMessage and Wire are both unaffected on the same device,
if the text is pasted in a group conversation the multiplication effect is much faster, it appears to be 4x per member of the group,
if both the sender and the recipient are on a vulnerable iPhone this multiplies much faster as it appears to multiply on both the sender's and the recipient's iPhone,
the multiplication on leaving and returning to the conversation requires the recipient to have received the message, otherwise you only get the "local" multiplication (i.e. send message, get 4x in the conversation. Leave conversation and re-enter before it is delivered to the other party - no change in display. Leave conversation and re-enter after it has been delivered to the other party - multiplies again "spontaneously")
even if the message has reached the point (see screenshots) of going to "Read More" because of length it appears to be always possible to delete it as long as you wait for the interface to respond.
Bug description
On specific iPhone models entering the string
¯\_(ツ)_/¯
in a Signal conversation causes it to multiply by four once sent, and then the message to replicate itself by four each time the conversation is re-opened.Steps to reproduce
Tested on the following models, all running iOS 14:
known not to affect iPhone 11 (all models), iPhone SE (2020).
¯\_(ツ)_/¯
The second screenshot shows that it appears to be related to a particular set of Unicode, possibly linked to the parenthesis.
Actual result: multiplying text out of control.
Expected result: text is displayed once only.
Screenshots
Device info
Device: iPhone 8plus, iPhone 8, iPhone 7, iPhone 6s
iOS version: 14.0.1
Signal version: 3.17.6 and 3.18.0.9
Link to debug log
https://debuglogs.org/07a5db3286f8e3ef68b450ad25ff96595861df9bc88512d1721a2b3699c926a2.zip
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