In TEdit (5th round) menu buttons: clicking in POSTLABEL of FIELD button does not position insert caret correctly

[fghalasz]

Branch: rmk36--Tedit-fifth-round-2, Commit: 1bfaa03

Insert multiple FIELD buttons with PRELABELS and POSTLABELS into a textstream.

Clicking on the PRELABEL of any of the fields moves the insert cursor to the beginning of the {} field as expected.

Clicking on the POSTLABEL places the insert cursor incorrectly. Specifically, if this is the first FIELD or if this FIELD is preceded by a character (i.e., not another FIELD ), then the insert cursor is placed just before the PRELABEL.

If there is a sequence of FIELDs with no intervening characters (or imageobjs), then when clicking on the POSTLABELs will place the insert cursor before the PRELABEL of the FIRST FIELD in the sequence.

[rmkaplan]

This should be fixed in the current fifth round commit, please check.