Do not reset chosen session and maintain the session-choser dialog after a
failed login attempt.

Patch by E. Bavier

--- slim-1.3.6/panel.cpp.orig	1969-12-31 18:00:00.000000000 -0600
+++ slim-1.3.6/panel.cpp	2016-10-17 17:00:07.259649063 -0500
@@ -260,13 +260,12 @@
 }
 
 void Panel::ClearPanel() {
-	session_name = "";
-    session_exec = "";
 	Reset();
 	XClearWindow(Dpy, Root);
 	XClearWindow(Dpy, Win);
 	Cursor(SHOW);
 	ShowText();
+	ShowSession();
 	XFlush(Dpy);
 }
 
@@ -760,9 +760,7 @@
         pair<string,string> ses = cfg->nextSession();
         session_name = ses.first;
         session_exec = ses.second;
-        if (session_name.size() > 0) {
-                ShowSession();
-        }
+        ShowSession();
  }
 
 /* Display session type on the screen */
lected'>koszko</option>
<option value='koszko-scripts'>koszko-scripts</option>
</select> <input type='submit' value='switch'/></form></td></tr>
<tr><td class='sub'>Wojtek's customized Guix</td><td class='sub right'></td></tr></table>
<table class='tabs'><tr><td>
<a href='/guix/about/'>about</a><a href='/guix/'>summary</a><a href='/guix/refs/?id=3895b477c7f9d480d7d16038ceb8b9d1548dddfe'>refs</a><a class='active' href='/guix/log/gnu/tests/nfs.scm'>log</a><a href='/guix/tree/gnu/tests/nfs.scm?id=3895b477c7f9d480d7d16038ceb8b9d1548dddfe'>tree</a><a href='/guix/commit/gnu/tests/nfs.scm?id=3895b477c7f9d480d7d16038ceb8b9d1548dddfe'>commit</a><a href='/guix/diff/gnu/tests/nfs.scm?id=3895b477c7f9d480d7d16038ceb8b9d1548dddfe'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/gnu/tests/nfs.scm'>
<input type='hidden' name='id' value='3895b477c7f9d480d7d16038ceb8b9d1548dddfe'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/guix/log/?id=3895b477c7f9d480d7d16038ceb8b9d1548dddfe'>root</a>/<a href='/guix/log/gnu?id=3895b477c7f9d480d7d16038ceb8b9d1548dddfe'>gnu</a>/<a href='/guix/log/gnu/tests?id=3895b477c7f9d480d7d16038ceb8b9d1548dddfe'>tests</a>/<a href='/guix/log/gnu/tests/nfs.scm?id=3895b477c7f9d480d7d16038ceb8b9d1548dddfe'>nfs.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/tests/nfs.scm?id=3895b477c7f9d480d7d16038ceb8b9d1548dddfe&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2020-11-07 12:48:24 +0100'>2020-11-07</span></td><td><a href='/guix/commit/gnu/tests/nfs.scm?id=7286c9b1879453ea4e0a08e91cc48706d8887f37'>tests: nfs-root-fs: Use the right store file name.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
</td></tr>
<tr><td><span title='2018-03-09 17:24:45 +0300'>2018-03-09</span></td><td><a href='/guix/commit/gnu/tests/mail.scm?id=a9079b488037371f90514b82961dc075ea0b3985'>tests: mail: Add test for dovecot.</a><span class='msg-avail'>...</span></td><td>Oleg Pykhalov</td></tr>
<tr><td><span title='2017-07-20 11:57:13 +0200'>2017-07-20</span></td><td><a href='/guix/commit/gnu/tests/mail.scm?id=8b113790fa3bfd2300c737901ba161f079fedbdf'>tests: Use 'virtual-machine' records instead of monadic procedures.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2017-04-19 23:43:50 +0200'>2017-04-19</span></td><td><a href='/guix/commit/gnu/tests/mail.scm?id=950026ac7f17b3b4d5420cde9709c24e9af76dcb'>tests: mail: Add test for exim</a><span class='msg-avail'>...</span></td><td>Carlo Zancanaro</td></tr>
<tr><td><span title='2017-04-01 00:45:18 +0200'>2017-04-01</span></td><td><a href='/guix/commit/gnu/tests/mail.scm?id=892d9089a88abaa2ef1127f16308d03f4f08a4ce'>tests: Introduce 'simple-operating-system' and use it.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>