Google N-gram Corpus Counts
╭─ーーーーーーーーーーーー─┬───────┬───────╮
│ ミイラ取りがミイラになる │ 5,060 │ 86.4% │
│ 木乃伊取りが木乃伊になる │   161 │  2.8% │ - add, sK (ateji form)
│ ミイラとりがミイラになる │   633 │ 10.8% │
╰─ーーーーーーーーーーーー─┴───────┴───────╯

@@ -5,0 +6,4 @@
+</k_ele>
+<k_ele>
+<keb>木乃伊取りが木乃伊になる</keb>
+<ke_inf>&sK;</ke_inf>

@@ -11,0 +12 @@
+<misc>&id;</misc>

I think it was too long and repetitive. The message is clear with only a few glosses.

@@ -13,3 +13,0 @@
-<gloss g_type="expl">(original sense) going out to fetch someone and not returning (ending up a mummy in the tomb)</gloss>
-<gloss g_type="lit">the mummy hunter himself becomes a mummy</gloss>
-<gloss>the hunter becomes the hunted</gloss>
@@ -18,1 +15,1 @@
-<gloss>the one who bites get bitten instead</gloss>
+<gloss g_type="lit">the mummy hunter himself becomes a mummy</gloss>

広辞苑
(I can read 広辞苑 better now, 5 months on…)

* Add [exp] (explanatory) translations, which *really* clarify things for me.
I heard this used in the “intending to persuade and instead being persuaded oneself” sense (which as per 広辞苑 is the current sense).
The figurative translations are idiomatic in English (indicate a similar reversal), but have completely different meanings (e.g., “going for wool” means “seeking to get rich, but ending up losing money”), unrelated to the *persuasion* sense (I don’t know a good English idiom for this sense).

@@ -12,0 +12,3 @@
+<gloss>intending to persuade someone and instead being persuaded oneself</gloss>
+<gloss g_type="expl">(original sense) going out to fetch someone and not returning (ending up a mummy in the tomb)</gloss>
+<gloss g_type="lit">the mummy hunter himself becomes a mummy</gloss>
@@ -16,1 +19,0 @@
-<gloss g_type="lit">the mummy hunter himself becomes a mummy</gloss>