MUC screen flush after reconnect

[eqn-group]

Expected Behavior

It should not flush screen on auto disconnect and after reconnect

Current Behavior

It flushes the screen i.e. empty chat in muc, You have joined the room as (null), role: none, affiliation: none"
after reconnect

Possible Solution

I don't know, there is some issue with last message time comparison

Steps to Reproduce (for bugs)

1. join a muc
2. chat for some time, then turn off internet it will disconnect , i assume /reconnect 30s timeout
3. turn on internet and it will reconnect
4. now, check the muc, the chat screen is smoty

Context

Environment

Profanity, version 0.11.1

##Error Log
stderr: ERR: (profanity:22): GLib-CRITICAL **: 23:17:22.485: g_date_time_difference: assertion 'end != NULL' failed
stderr: ERR: (profanity:22): GLib-CRITICAL **: 23:17:22.486: g_date_time_difference: assertion 'end != NULL' failed
stderr: ERR: (profanity:22): GLib-CRITICAL **: 23:17:22.898: g_date_time_difference: assertion 'end != NULL' failed
stderr: ERR: (profanity:22): GLib-CRITICAL **: 23:17:22.899: g_date_time_difference: assertion 'end != NULL' failed
.... similar more

[mdosch]

There's already an issue for this problem but I didn't find it now as mobile github sucks.

[jubalh]

duplicate of #1556