Created attachment 8757598 [details] test kit Steps how to reproduce with English SeaMonkey 2.45a1 (Windows NT 6.1; WOW64; rv:48.0) Gecko/20100101 Firefox/48.0 Build 20160308001946 (Default Classic Theme) on German WIN7 64bit: 0. download and unzip attached testkit.zip 1. Launch SeaMonkey email client 2. Click on inbox of arbitrary email account with preference "Compose as Plain Text" → Click 'Compose' icon to compose new email » Email composer opens with new empty email 3. From Testkit open "Test Text.txt" in Text editor (I use SynWrite) 4. Select all Text and copy / paste to email body 5. Type Subject "Draft0001" 6. 'Icon Save▼ → As Draft' 7. Click left from word "tell" in second line » Caret flashes left from "tell" 8. Press <arrowup> on keyboard » Caret flashes directly behind "If" 9. Close Email Composition Window with click on Close-X at top right window corner 10. Reopen saved "Draft0001" by double click 11. Redo test from stepx 7,8 Bug: Caret now flashes behind blank behind "If", further investigation of text in composer window shows that leading blanks have been added to all lines except first one. 12. Save as "Draft0002" Additional information: a) Toggling between "Draft0002" ↔ "Draft0001" in Message pane shows difference in an impressive way b) NOT reproducible REPRODUCIBLE with en-US SeaMonkey 2.40 final Mozilla/5.0 (Windows NT 6.1; WOW64; rv:43.0) from official download page, Gecko/20100101 Firefox/ 43.0 Build 20160120202951, (Default Classic Theme) on German WIN7 64bit c) When you open draft0.eml and draft1.eml in different Browser TABs you also see the difference like in (a)
d) I did not find an obvious DUP with <https://bugzilla.mozilla.org/buglist.cgi?cmdtype=dorem&remaction=run&namedcmd=DUPs1276414&sharer_id=41036> e) Same test results with IMAP or POP3 account f) Not reproducible with HTML Web Page Composer g) Also REPRODUCIBLE with English SeaMonkey 2.46a1 (X11; Linux x86_64; rv:49.0) Gecko/20100101 Firefox/49.0 Build 20160527003002 (Default Classic Theme) on VirtualBox Ubuntu 12.04 LTS
h) Already REPRODUCIBLE with unofficial (from <http://seamonkey.callek.net/contrib/>) English SeaMonkey 2.43a1 Mozilla/5.0 (Windows NT 6.1; WOW64; rv:46.0) Gecko/20100101 Firefox/46.0 Build 20160116041507 (Default Classic Theme) on German WIN7 64bit i) Was still ok with SeaMonkey 2.42a1 Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0 from public download area) Gecko/20100101 Firefox/ 45.0 Build 20151111021032, (Classic Theme) on German WIN7 64bit k) No Problem for HTML email composer
OS: Windows 7 → All
Version: SeaMonkey 2.45 Branch → SeaMonkey 2.43 Branch
Do you see the same with mailnews.send_plaintext_flowed set to false? And/or mailnews.display.disable_format_flowed_support set to true? Leading spaces are inserted into lines which start with a leading space for format=flowed. That's somehow a requirement of the standard (don't recall right now why). Likely a MailNews Core or even a Serializer bug.
Status: UNCONFIRMED → NEW
Ever confirmed: true
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