View size in recycler sometimes changes

- [x] I have searched [existing issues](https://github.com/facebook/litho/issues) and this is not a duplicate

## Version
```groovy
api "org.jetbrains.kotlinx:kotlinx-collections-immutable:0.1"

implementation 'com.facebook.litho:litho-core:0.33.0'
implementation 'com.facebook.litho:litho-widget:0.33.0'

kapt 'com.facebook.litho:litho-processor:0.33.0'
implementation 'com.facebook.soloader:soloader:0.6.0'
implementation 'com.facebook.litho:litho-fresco:0.33.0'

implementation 'com.facebook.litho:litho-sections-core:0.33.0'
implementation 'com.facebook.litho:litho-sections-widget:0.33.0'
compileOnly 'com.facebook.litho:litho-sections-annotations:0.33.0'
kapt 'com.facebook.litho:litho-sections-processor:0.33.0'
```

## Issues and Steps to Reproduce
```kotlin

import com.facebook.litho.StateValue
import com.facebook.litho.annotations.OnCreateInitialState
import com.facebook.litho.annotations.OnUpdateState
import com.facebook.litho.annotations.Param
import com.facebook.litho.annotations.State
import com.facebook.litho.sections.Children
import com.facebook.litho.sections.SectionContext
import com.facebook.litho.sections.annotations.GroupSectionSpec
import com.facebook.litho.sections.annotations.OnCreateChildren
import com.facebook.litho.sections.annotations.OnViewportChanged
import com.facebook.litho.sections.common.SingleComponentSection
import com.facebook.litho.widget.Progress
import com.facebook.litho.widget.Text
import kotlinx.collections.immutable.ImmutableList
import kotlinx.collections.immutable.immutableListOf

@GroupSectionSpec
object LoadingTestSectionSpec {
@OnCreateInitialState
fun onCreateInitialState(
c: SectionContext,
isLoading: StateValue,
lastPage: StateValue,
items: StateValue>
) {
isLoading.set(false)
lastPage.set(0)
items.set(immutableListOf())
}

@OnCreateChildren
fun onCreateChildren(
c: SectionContext,
@State isLoading: Boolean,
@State lastPage: Int,
@State items: ImmutableList
): Children {
val builder = Children.create()
for (item in items) {
builder.child(
SingleComponentSection.create(c)
.key(item)
.component(
Text.create(c)
.textSizeSp(32f)
.text(item)
.build()
)
)
}

if (isLoading) {
builder.child(
SingleComponentSection.create(c)
.key("loading")
.component(Progress.create(c).heightDip(25f).build())
.build()
)
}

if (!isLoading && items.isEmpty()) {
startLoading(c, lastPage)
}

return builder.build()
}

@OnViewportChanged
fun onViewportChanged(
c: SectionContext,
firstVisiblePosition: Int,
lastVisiblePosition: Int,
totalCount: Int,
firstFullyVisibleIndex: Int,
lastFullyVisibleIndex: Int,
@State isLoading: Boolean,
@State lastPage: Int
) {
if (!isLoading && (lastVisiblePosition == totalCount - 1 || totalCount == 0)) {
startLoading(c, lastPage)
}
}

private fun startLoading(
c: SectionContext,
lastPage: Int
) {
LoadingTestSection.switchLoading(c)

Thread {
Thread.sleep(2000)

LoadingTestSection.addNextPageAsync(
c,
immutableListOf(
"1-$lastPage",
"2-$lastPage",
"3-$lastPage"))
}.start()
}

@OnUpdateState
fun switchLoading(isLoading: StateValue) {
isLoading.set(!(isLoading.get() ?: true))
}

@OnUpdateState
fun addNextPage(
isLoading: StateValue,
lastPage: StateValue,
items: StateValue>,
@Param page: ImmutableList
) {
isLoading.set(false)
lastPage.set((lastPage.get() ?: 0) + 1)
items.set((items.get() ?: immutableListOf()).addAll(page))
}
}
```

```kotlin
val c = ComponentContext(this);
val component: Component = RecyclerCollectionComponent.create(c)
.disablePTR(true)
.section(
LoadingTestSection
.create(SectionContext(c))
.build()
)
.build()
setContentView(LithoView.create(c, component))
```
[The progress view size changes after several updates.](https://thumbs.gfycat.com/ChubbyPerfectDamselfly-mobile.mp4)

## Expected Behavior
The progress view size must not change.