Character's explicit animation resets to frame 0 if char stops moving

[ivan-mogilko]

Most recent report: https://www.adventuregamestudio.co.uk/forums/index.php?topic=58446.0

Describe the bug
If a non-blocking character animation is started, and then character's Move command is called (either blocking or non-blocking), then, as soon as character arrives to destination and stops:

• if animation was already complete, then character's frame resets to frame 0 of the animation loop and keeps that;
• if animation was still playing, then it resets to frame 0 and continues playing to the end again.

AGS Version
At least in AGS 3.4.3 - 3.5.0, but could be an older issue.

To Reproduce

1. Create a separate view with 1 loop and few frames;
2. Use similar script:

player.LockView(VMOVEANIM);
player.Animate(0, 2, eOnce, eNoBlock);
player.Move(50, 100, eBlock, eAnywhere);

3. Run the game and trigger above script.
4. Observe the problem.
   Note you may experiment with the movement and animation speeds to see both potential outcomes described above.

Expected behavior
Character stopping after movement should not reset (or otherwise affect) ongoing animation if the view is locked.

Known workarounds
The simpliest known is to change coordinates by hand instead of calling Move, but this is only useful if you are moving without walkable areas, as you won't be able to utilise pathfinding, for example:

player.LockView(VMOVEANIM);
player.Animate(0, 2, eOnce, eNoBlock);
int current_x = player.x;
while (player.x > current_x - 100)
{
    player.x -= 5; // change 5 to the wanted speed
    Wait(1);
}

May be or not relevant to #935.