Description:
LibO has several issues managing gluepoins:

1) Once gluepoints have been added, it is impossible to remove them
2) When the "gluepoint" button is pressed, objects show resize handles that take precedence over gluepoints. Thus if a gluepoint is placed at a corner of an object (where the handle is supposed to be), it is impossible to move it elsewhere. When the gluepoint button is pressed, resize handles should be disabled.
3) LibO 5.4.4.2 it seems to be impossible to move gluepoints at all (this seems to work both in 5.3 and 6.0.0RC1

Gluepoints are extra important when drawing diagrams and diagram like drawings, such as electrical circuits, etc.

Steps to Reproduce:
1. Open draw, draw a box
2. Put a gluepoint into it
3. Try to move the gluepoint around in the object
4. Put the gluepoint on a corner of the box
5. Try to move the gluepoint around in the object
6. See if the gluepoint can be deleted

Actual Results:  
LibO 5.4.4.2 fails at 3 (it is impossible to move the gluepoint)

LibO 5.3.x and 6.0.0 RC 1 fail at 5 (attempt to move gluepoint causes the box to be resized).

All LibO versions fail at 6

Expected Results:
All the actions should succeed.


Reproducible: Always


User Profile Reset: No



Additional Info:
[Information automatically included from LibreOffice]
Locale: en-US
Module: DrawingDocument
[Information guessed from browser]
OS: Linux (All)
OS is 64bit: yes


User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:57.0) Gecko/20100101 Firefox/57.0