Fixes #703: Missed changes to the `swap()` method required by the int… #778

Job	Run time
build (ubuntu-24.04, 12.6.2, 13, bash, Unix Makefiles)	3m 5s
build (ubuntu-24.04, 12.5.1, 13, bash, Unix Makefiles)	2m 58s
build (ubuntu-20.04, 12.6.0, 10, bash, Unix Makefiles)	2m 53s
build (ubuntu-20.04, 12.5.1, 10, bash, Unix Makefiles)	2m 54s
build (ubuntu-20.04, 12.4.1, 10, bash, Unix Makefiles)	2m 48s
build (ubuntu-20.04, 12.3.1, 10, bash, Unix Makefiles)	3m 9s
build (ubuntu-20.04, 12.2.2, 10, bash, Unix Makefiles)	2m 48s
build (ubuntu-20.04, 12.1.1, 10, bash, Unix Makefiles)	2m 44s
build (ubuntu-20.04, 12.0.1, 10, bash, Unix Makefiles)	2m 40s
build (ubuntu-20.04, 11.8, 10, bash, Unix Makefiles)	2m 43s
build (ubuntu-20.04, 11.7, 10, bash, Unix Makefiles)	2m 38s
build (ubuntu-20.04, 11.6.2, 10, bash, Unix Makefiles)	2m 44s
build (ubuntu-20.04, 11.6.1, 10, bash, Unix Makefiles)	2m 42s
build (ubuntu-20.04, 11.6, 10, bash, Unix Makefiles)	2m 46s
build (ubuntu-20.04, 11.5, 10, bash, Unix Makefiles)	2m 45s
build (ubuntu-20.04, 11.4, 10, bash, Unix Makefiles)	2m 27s
build (ubuntu-20.04, 11.3, 9, bash, Unix Makefiles)	2m 34s
build (ubuntu-20.04, 11.2, 9, bash, Unix Makefiles)	2m 30s
build (ubuntu-20.04, 11.1, 9, bash, Unix Makefiles)	2m 4s
build (ubuntu-20.04, 11.0, 9, bash, Unix Makefiles)	1m 52s
	53m 44s

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