Mailspring: Bug: Error during the syncing with yandex

[ovgeorge]

Describe the bug
Happens in the middle or work, initially mail is working fine

To Reproduce
Steps to reproduce the behavior:

1. Just work some time
2. Try any action
3. Ger error about syncing -- synchronization error with yandex.ru
4. See error. Close app, start again and you can work with it for some time

Expected behavior
Just syncing mail

Setup: (please complete the following information):

• OS: macOS
• OS Version 10.15.4 (19E287)
• Mailspring Version: 1.7.8 (1.7.8)

Additional context
Mailspring Version: 1.7.8-13635bcf
Platform: darwin
Account State: sync_error
Account Provider: yandex
IMAP Server: imap.yandex.com

SMTP Server: smtp.yandex.com

* in mailsync exceptions::logCurrentExceptionWithStackTrace()
in mailsync runBackgroundSyncWorker()
in mailsync main::$_6::operator()() const
in mailsync void __thread_proxy(void)
** in mailsync thread_start()

---

7266 [2020-06-11 01:40:28.909] [main] [info] Identity created at 1579206750 - using ID Schema 1
7266 [2020-06-11 01:40:28.910] [main] [info] ------------- Starting Sync ([email protected]) ---------------
7266 [2020-06-11 01:40:28.915] [metadata] [info] Metadata delta stream starting...
7266 [2020-06-11 01:40:32.916] [background] [info] Marking all folders as busy
7266 [2020-06-11 01:40:32.917] [background] [info] Syncing folder list...
7266 [2020-06-11 01:40:33.124] [background] [info] Syncing folder list...
7266 [2020-06-11 01:40:33.374] [foreground] [info] syncFolderUIDRange for INBOX, UIDs: 23201 - 23341, Heavy: false
7266 [2020-06-11 01:40:33.405] [background] [info] syncFolderUIDRange for &BBAEQARFBDgEMg-, UIDs: 9535 - 10285, Heavy: true
7266 [2020-06-11 01:40:33.446] [foreground] [info] - remote=101, local=101
7266 [2020-06-11 01:40:33.449] [foreground] [info] Idling on folder INBOX
7266 [2020-06-11 01:40:43.912] [metadataExpiration] [info] Scanning for expired metadata
7266 [2020-06-11 01:40:43.912] [metadataExpiration] [info] -- Will wake for next expiration in 7200sec
7266 [2020-06-11 01:40:48.715] [calContacts] [critical]

---

* Mailspring Sync
An exception occurred during program execution:
** {"debuginfo":"https://yandex.ru/","key":"Stream error in the HTTP/2 framing layer","retryable":false,"what":"std::exception"}

---

7266 [2020-06-11 01:40:48.715] [calContacts] [critical] * Stack trace (line numbers are approximate):
in mailsync ValidateRequestResp(CURLcode, void, string)
* in mailsync PerformRequest(void)
* in mailsync DAVWorker::performXMLRequest(string, string, string)
in mailsync DAVWorker::resolveAddressBook()
in mailsync DAVWorker::runContacts()
in mailsync DAVWorker::run()
in mailsync runCalContactsSyncWorker()
in mailsync main::$_7::operator()() const
in mailsync void __thread_proxy(void)
** in mailsync thread_start()

---

7266 [2020-06-11 01:40:48.715] [calContacts] [error] Suspending sync for 90min - unlikely a retry would resolve this error.
7266 [2020-06-11 01:41:16.793] [background] [info] - remote=748, local=137
7266 [2020-06-11 01:41:16.814] [background] [critical]

---

* Mailspring Sync
A JSON exception occurred during program execution:
** [json.exception.type_error.316] invalid UTF-8 byte at index 1: 0xA3

---

7266 [2020-06-11 01:41:16.855] [background] [critical] * Stack trace (line numbers are approximate):
in mailsync exceptions::logCurrentExceptionWithStackTrace()
in mailsync runBackgroundSyncWorker()
in mailsync main::$_6::operator()() const
in mailsync void* __thread_proxy(void*)
* in mailsync thread_start()

---

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