fixup! ask knitr to hold/coalesce echos when renderings is set

Author: gordonwoodhull

tests/docs/smoke-all/dark-mode/ggplot-brandless.qmd

@@ -63,7 +63,7 @@ ggplot(mtcars, aes(mpg, wt)) +
 
 ### with crossref but no caption
 
-::: {#fig-ggplot}
+::: {#fig-thematic-ggplot}
 ```{r}
 #| echo: true
 #| renderings:
@@ -89,13 +89,15 @@ ggplot(mtcars, aes(mpg, disp)) +
   geom_point(aes(colour = factor(cyl))) + colour_scale
 ```
 
-ggplot - dark only
+thematic - base r graphics
 
 </div>
 
+## patchwork
+
 ### with crossref and caption
 
-::: {#fig-ggplot-mpg-hp}
+::: {#fig-thematic-patchwork}
 ```{r}
 #| renderings: [light, dark]
 theme_set(united_theme)

tests/docs/smoke-all/dark-mode/ggplot-duobrand.qmd

@@ -65,7 +65,7 @@ ggplot(mtcars, aes(mpg, wt)) +
 
 and `echo: true`
 
-::: {#fig-ggplot}
+::: {#fig-thematic-ggplot}
 
 ```{r}
 #| echo: true
@@ -83,6 +83,8 @@ ggplot(mtcars, aes(mpg, disp)) +
 
 ### with caption but no crossref
 
+dark rendering only
+
 <div>
 
 ```{r}
@@ -91,14 +93,15 @@ ggplot(mtcars, aes(mpg, disp)) +
   geom_point(aes(colour = factor(cyl))) + slate_theme + colour_scale
 ```
 
-ggplot - dark only
+thematic - base r graphics
 
 </div>
 
+## patchwork
 
 ### with crossref and caption
 
-::: {#fig-ggplot-mpg-hp}
+::: {#fig-thematic-patchwork}
 ```{r}
 #| renderings: [light, dark]
 ggplot(mtcars, aes(mpg, hp)) +