Quickshot failures seem to restore MP

[arpade]

When training bow-skills i found a bug that glitches MV:

<535/535hp 372/432mana 241/267mv 481741tnl | NESW>
You pull a hand-crafted wooden arrow out of a standard quiver.
You pinch a hand-crafted wooden arrow with your fingers and draw the string of your bow backward.

<535/535hp 372/432mana 226/267mv 481741tnl | NESW> she
> shoot east hobgoblin
You turn eastwards, aim at a hobgoblin soldier and gently release the string of your bow.
A hand-crafted wooden arrow hits a hobgoblin soldier.

<535/535hp 357/432mana 226/267mv 481741tnl | NESW> qse
> quickshot arrow from quiver east hobgoblin
You start drawing the string of your bow but lose the grip.

<535/535hp 357/432mana 362/267mv 481741tnl | NESW> qse
qse
> quickshot arrow from quiver east hobgoblin
You start drawing the string of your bow but lose the grip.

<535/535hp 378/432mana 237/267mv 481741tnl | NESW>
> quickshot arrow from quiver east hobgoblin
You start drawing the string of your bow but lose the grip.

<535/535hp 378/432mana 384/267mv 481741tnl | NESW> qse
qse
> quickshot arrow from quiver east hobgoblin
You start drawing the string of your bow but lose the grip.

<535/535hp 378/432mana 678/267mv 481741tnl | NESW>

You have become better at Expert Marksman!

<535/535hp 378/432mana 678/267mv 481741tnl | NESW> who
> quickshot arrow from quiver east hobgoblin
You hastily load a hand-crafted wooden arrow into an ornate elven bow.
You turn eastwards, aim at a hobgoblin soldier and gently release the string of your bow.
A hand-crafted wooden arrow hits a hobgoblin soldier.
You have become better at quick shot!

<535/535hp 378/432mana 618/267mv 480241tnl | NESW> qse
> quickshot arrow from quiver east hobgoblin
You start drawing the string of your bow but lose the grip.

<535/535hp 378/432mana 1146/267mv 480241tnl | NESW> qse
qse
qse
qse
qse
> quickshot arrow from quiver east hobgoblin
You hastily load a hand-crafted wooden arrow into an ornate elven bow.
You turn eastwards, aim at a hobgoblin soldier and gently release the string of your bow.
A hand-crafted wooden arrow soars into the air with sensational accuracy and force.
A hand-crafted wooden arrow hits a hobgoblin soldier.
Your force shield shimmers then fades away.
cast 'shield'

<535/535hp 378/432mana 1086/267mv 480241tnl | NESW>
> quickshot arrow from quiver east hobgoblin
You hastily load a hand-crafted wooden arrow into an ornate elven bow.
You turn eastwards, aim at a hobgoblin soldier and gently release the string of your bow.
A hand-crafted wooden arrow hits a hobgoblin soldier.

<535/535hp 378/432mana 1026/267mv 480241tnl | NESW>
> quickshot arrow from quiver east hobgoblin
You start drawing the string of your bow but lose the grip.

<535/535hp 378/432mana 1962/267mv 480241tnl | NESW>
> quickshot arrow from quiver east hobgoblin
You start drawing the string of your bow but lose the grip.

<535/535hp 378/432mana 3834/267mv 480241tnl | NESW> qse
qse
qse
> quickshot arrow from quiver east hobgoblin
You start drawing the string of your bow but lose the grip.

<535/535hp 378/432mana 7578/267mv 480241tnl | NESW>
You raise your voice into an ancient incantation.
You are surrounded by a force shield.

<535/535hp 366/432mana 7578/267mv 480241tnl | NESW>
> quickshot arrow from quiver east hobgoblin
You start drawing the string of your bow but lose the grip.

<535/535hp 366/432mana 7548/267mv 480241tnl | NESW>
> quickshot arrow from quiver east hobgoblin
You hastily load a hand-crafted wooden arrow into an ornate elven bow.
You turn eastwards, aim at a hobgoblin soldier and gently release the string of your bow.
You have become better at accuracy!
<535/535hp 402/432mana 207/267mv 479141tnl | NESW>
A hand-crafted wooden arrow hits a hobgoblin soldier.

> quickshot arrow from quiver east hobgoblin
You start drawing the string of your bow but lose the grip.

<535/535hp 402/432mana 324/267mv 479141tnl | NESW> qse


As we can see, moves became thousands there after i spammed my "quick shot east" alias, but normally it costs mv (a bonkers ammount really), so it seems to be a consequence of failing to load.