Re: [Bug: 21.5-b28] unusability of VM under 21.5

================================================================ Dear Bug Team! As requested by Stephen in the "What is the status of 21.5?" thread on xemacs-beta, here is a skeleton bug report. Because of the complexity of the problem, it's not possible with small effort to produce minimal reproducible examples. Basically use of VM (version 7.19 in my case) is severely impaired under 21.5, for the following reasons: 1) There is highly visible reconfiguation of windows during some VM operations. (Typical VM frame has a summary window at the top, and a message window at the bottom. Under 21.5, these windows sometimes disappear from the display and then reappear, when under 21.4 this doesn't happen.) 2) The position of point in the VM summary buffer/window does not behave. Some operations appear to move point in the window when it's not expected, resulting in, e.g., the wrong message being deleted when you hit 'd' expecting to delete the next message.