invocation vs being trapped

I can't find the report about this; I must have deleted it after
reading, or else recently reread something so old that I'm not going back
far enough now.  When you perform the invocation ritual to create the
stairs down to Moloch's Sanctum, any trap at your location gets deleted.
But if you were in a trapped state at the time then you got left in that
state.  Descending stairs doesn't check for traps so you wouldn't notice
unless you tried to move around on the same level first.  Then you'd get
"you're stuck in a pit/beartrap/web" even though it wasn't there anymore.

doc/fixes34.4

@@ -233,6 +233,7 @@ temple donation can recover protection previously stolen by attrcurse attack
 	even when protection amount is so big that no increment would be given
 display the invisible monster glyph ('I') whenever an unseen monster forces
 	poly'd hero out of hiding
+escape the deleted trap after performing the invocation while trapped
 
 
 Platform- and/or Interface-Specific Fixes

src/mklev.c

@@ -1,4 +1,4 @@
-/*	SCCS Id: @(#)mklev.c	3.5	2006/03/06	*/
+/*	SCCS Id: @(#)mklev.c	3.5	2006/05/29	*/
 /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
 /* NetHack may be freely redistributed.  See license for details. */
 
@@ -1437,6 +1437,11 @@ mkinvokearea()
     pline_The("walls around you begin to bend and crumble!");
     display_nhwindow(WIN_MESSAGE, TRUE);
 
+    /* any trap hero is stuck in will be going away now */
+    if (u.utrap) {
+	u.utrap = 0;
+	if (u.utraptype == TT_BURIEDBALL) buried_ball_to_punishment();
+    }
     mkinvpos(xmin, ymin, 0);		/* middle, before placing stairs */
 
     for(dist = 1; dist < 7; dist++) {