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# [Vyxal](https://github.com/Vyxal/Vyxal/tree/version-2), 4 bytes 

```
Ġċ†∑
```

[Try it Online!](https://vyxal.pythonanywhere.com/?v=2&c=1#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)

Takes input as a string of 32 bits.

## Explained

```
Ġċ†∑­⁡​‎‎⁡⁠⁡‏‏​⁡⁠⁡‌⁢​‎‎⁡⁠⁢‏‏​⁡⁠⁡‌⁣​‎‎⁡⁠⁣‏‏​⁡⁠⁡‌⁤​‎‎⁡⁠⁤‏‏​⁡⁠⁡‌­
Ġ     # ‎⁡Group the input by consecutive values. Basically, split the input on runs.
 ċ    # ‎⁢Push whether each run != 1. Basically, an inverted check for "is this run a '1' or multiple 1s/0s".
  †   # ‎⁣Logical not each comparison, because the above check was inverted.
   ∑  # ‎⁤Summate the list, returning the count of truthy comparisons.
💎
```
Created with the help of [Luminespire](https://vyxal.github.io/Luminespire).